This is a list of enemies from the Mario series and all related series of video games and other media. The list includes the first game or other type of media where each enemy first appeared.
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A
- Abigor – Club Nintendo
- Abominable Snowkoopa – The Adventures of Super Mario Bros. 3
- Accordion Guy – Paper Mario: Sticker Star
- Ack – Donkey Kong Country Returns
- Aero – Super Mario RPG: Legend of the Seven Stars
- Air Bag – Yoshi's Story
- Air Cannon – Mario & Luigi: Bowser's Inside Story
- Air Cheep – Mario & Luigi: Bowser's Inside Story
- AirMeow – Super Paper Mario
- Airnapse – Mario & Luigi: Bowser's Inside Story
- Alarm Bob-omb – Mario & Luigi: Bowser's Inside Story
- Alarm Clock – Wario Land II
- Albatoss – Super Mario Bros. 2
- Albino Dino – Paper Mario
- Alien – Sag niemals Holerö!
- Alley Rat – Super Mario RPG: Legend of the Seven Stars
- Amanita – Super Mario RPG: Legend of the Seven Stars
- Amazing Flyin' Hammer Brother – Super Mario World
- Amazy Dayzee – Paper Mario
- Ameboid – Super Mario RPG: Legend of the Seven Stars
- Amp – Super Mario 64
- Amphibigun – Wario: Master of Disguise
- Angler Mangler – Wario World
- Angry Spear-Mask – Wario Land 4
- Angry Star – Super Mario Land 2: 6 Golden Coins
- Angry Sun – Super Mario Bros. 3
- Ankiron – Wario World
- Ankoopa – Mario & Luigi: Superstar Saga
- Ant Trooper – Super Mario 3D World
- Antasmunchie – Mario & Luigi: Dream Team
- Ant – Super Mario Land 2: 6 Golden Coins
- Anuboo – Mario & Luigi: Superstar Saga
- Ape – Wario Land II
- Appleby – Wario Land 3
- Apprentice – Super Mario RPG: Legend of the Seven Stars
- Aqua Lakitu – Super Mario World 2: Yoshi's Island
- Aqua Man – Donkey Kong
- Arachne – Super Mario RPG: Legend of the Seven Stars
- Arachno Snifit – The Super Mario Bros. Super Show!
- Arantula – Paper Mario: The Thousand-Year Door
- Archy – Donkey Kong Country: Tropical Freeze
- Arumajiron – Donkey Kong (Game Boy)
- Armor – Donkey Kong (Game Boy)
- Army – Donkey Kong Country
- Artichoker – Super Mario RPG: Legend of the Seven Stars
- Attacky Sack – Yoshi's Story
- Awk – Donkey Kong Country Returns
B
- Baby Bowser's Pet – Yoshi's Story
- Baby Cheep – Super Mario Bros. 3
- Back Cursya – Super Paper Mario
- Bacura – Super Smash Bros. for Nintendo 3DS
- Badge Bandit – Paper Mario: The Thousand-Year Door
- Bahamutt – Super Mario RPG: Legend of the Seven Stars
- Bald Cleft – Paper Mario: The Thousand-Year Door
- Balloon Boo – New Super Mario Bros.
- Balloon Goomba – New Super Mario Bros. U
- Bandinero – Wario Land: Shake It!
- Bandit – Super Mario World 2: Yoshi's Island
- Banzai Bill – Super Mario World
- Barbecue Guy – Yoshi's Story
- Barney Bubble – Super Mario World 2: Yoshi's Island
- Baron von Zeppelin – Super Mario World 2: Yoshi's Island
- Barribad – Super Paper Mario
- Barrel Buster – Wario World
- Bat – Luigi's Mansion
- Batadon – Super Mario Land
- Battle Beetle – Super Mario Land 2: 6 Golden Coins
- Battle Salmon – Wario: Master of Disguise
- Bazuka – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Bazza – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Beach Koopa – Super Mario World
- Beaker – Wario's Woods
- Beam Robota – Wario Land 3
- Beanie – Mario & Luigi: Superstar Saga
- Bear – Super Mario Land 2: 6 Golden Coins
- Bee – Yoshi's Story
- Bee – Wario Land II
- Beehoss – Mario & Luigi: Bowser's Inside Story
- Beepboxer – Super Paper Mario
- Beetle – Donkey Kong 3
- Beetle – The Super Mario Bros. Super Show!
- Beetle – Luigi's Mansion: Dark Moon
- Beezley – Wario Land 4
- Beezo – Super Mario Bros. 2
- Bellhop Goomba – Hotel Mario
- Bē – Super Mario Land 2: 6 Golden Coins
- Bēro – Super Mario Land 2: 6 Golden Coins
- Bībī – Super Mario Land 2: 6 Golden Coins
- Biddybud – Super Mario 3D Land
- Biff Atlas – Luigi's Mansion
- Biffidus – Mario & Luigi: Bowser's Inside Story
- Big & Little Boo – Yoshi's Story
- Big Ant Trooper – Super Mario 3D World
- Big Bad Wolf – The Super Mario Bros. Super Show!
- Big Ball – Wario Land 4
- Big Bandit – Paper Mario: The Thousand-Year Door
- Big Bertha – Super Mario Bros. 3
- Big Bertha – Super Mario RPG: Legend of the Seven Stars
- Big Blob – Virtual Boy Wario Land
- Big Bone-Fist – Wario World
- Big Bone Piranha Plant – New Super Mario Bros. 2
- Big Boo – Super Mario World
- Big Chain Chomp – Super Princess Peach
- Big Deep Cheep – New Super Mario Bros.
- Big Dry Bones – New Super Mario Bros.
- Big Eep Cheep – New Super Luigi U
- Big Fire Bar – New Super Mario Bros. U
- Big Fly – Mario Paint
- Big Frame Boo – Yoshi's Woolly World
- Big Galoomba – Super Mario 3D World
- Big Goomba – Super Mario Bros. 3
- Big Grinder – New Super Mario Bros. 2
- Big Koopa Troopa – Super Mario Bros. 3
- Big Lava Bubble – Mario Party
- Big Magon – Wario World
- Big Mimic – Donkey Kong Country: Tropical Freeze
- Big Paragoomba – The Adventures of Super Mario Bros. 3
- Big Piranha Plant – Super Mario Bros. 3
- Big Sammer Guy – Super Paper Mario
- Big Scorper – Wario World
- Big Sphen – Donkey Kong Country: Tropical Freeze
- Big Spiny – Mario Party 9
- Big Tail Goomba – Mario & Luigi: Dream Team
- Big Venus Fire Trap – Super Mario 64
- Big Whomp – New Super Mario Bros.
- Big Wiggler – New Super Mario Bros. Wii
- Big Zing – Donkey Kong Country Returns
- BigMeow – Super Paper Mario
- Bill Blaster – Super Mario Bros.
- Bill Blaster Turret – New Super Mario Bros.
- Bird – Wario Land II
- Birdoroo – The Super Mario Bros. Super Show!
- Birdy – Super Mario RPG: Legend of the Seven Stars
- Bitesize – Donkey Kong Country
- Biting Bullet Bill – Yoshi's Island: Super Mario Advance 3
- Bittacuda – Super Paper Mario
- Black Boo – Super Mario Bros. Deluxe
- Black Bogmire – Luigi's Mansion
- Black Duck – Wario Land 4
- Black Shy Guy – Yoshi's Story
- Blade-Face – Virtual Boy Wario Land
- Blamses – Wario: Master of Disguise
- Blanka – Club Nintendo
- Blargg – Super Mario World
- Blastboxer – Super Paper Mario
- Blaster – Super Mario RPG: Legend of the Seven Stars
- Blazing Shroob – Mario & Luigi: Partners in Time
- Blindfold Boo – Yoshi's Story
- Bloatula – Mario & Luigi: Dream Team
- Block Monolift – Mario & Luigi: Dream Team
- Blockhopper – New Super Mario Bros.
- Blockstepper – Super Mario 3D World
- Blomeba – Super Paper Mario
- Blokkablok – Super Mario 3D Land
- Blooper – Super Mario Bros.
- Blooper Baby – Super Mario Bros. 3
- Blooper Nanny – Super Mario Bros. 3
- Bloopurn – Mario & Luigi: Dream Team
- Blow Globe – Wario: Master of Disguise
- Blow Hard – Super Mario World 2: Yoshi's Island
- Blowtorch Guy – Mario vs. Donkey Kong
- Blue Blaze – Luigi's Mansion
- Blue Blurp – Yoshi's Story
- Blue Finley – Donkey Kong Country: Tropical Freeze
- Blue Hootz – Donkey Kong Country: Tropical Freeze
- Blue Magiblot – Super Paper Mario
- Blue Mouse – Luigi's Mansion
- Blue Twirler – Luigi's Mansion
- Blurker – Super Mario 3D World
- Blurp – Super Mario World
- Bob-omb – Super Mario Bros. 2
- Bob-ulk – Paper Mario: The Thousand-Year Door
- Bogmire – Luigi's Mansion
- Boing-Oing – Super Paper Mario
- Bombat – Wario: Master of Disguise
- Bomb-Bat – Virtual Boy Wario Land
- Bomb – Mario Hoops 3-on-3
- Bomb Boo – Super Mario Galaxy
- Bomb Fish – Mario vs. Donkey Kong 2: March of the Minis
- Bomb Fly – Mario Paint
- Bomb-Car – Mario Kart: Double Dash!!
- Bomb Guy – Yoshi's Woolly World
- Bombshell Koopa – Super Mario Land
- Bomp – Super Mario 64
- Bomubomu – Super Mario Land 2: 6 Golden Coins
- Bone Dragon – Yoshi's Story
- Bone Goomba – New Super Mario Bros. 2
- Bone Piranha Plant – New Super Mario Bros. 2
- Bone Thwomp – Mario & Luigi: Bowser's Inside Story
- Boneheads – WarioWare, Inc.: Mega Microgame$!
- Bonehead Jed – Donkey Kong Country Returns
- Bonkers – Super Smash Bros. for Nintendo 3DS
- Bony Beetle – Super Mario World
- Boo – Super Mario Bros. 3
- Boo Balloon – Super Mario World 2: Yoshi's Island
- Boo Blah – Super Mario World 2: Yoshi's Island
- Boo Block – Super Mario World
- Boo Buddy Swarm – Super Mario World
- Boo Buddy Snake – Super Mario World
- Boo Guy – Super Mario World 2: Yoshi's Island
- Boo Man Bluff – Super Mario World 2: Yoshi's Island
- Boo Stack – Paper Mario: Sticker Star
- Boohemoth – New Super Mario Bros. 2
- Bookend – Super Mario 64
- Boom Bird – Donkey Kong Country: Tropical Freeze
- Boom Guy – Mario & Luigi: Partners in Time
- Boom Stomper – Super Smash Bros. for Nintendo 3DS
- Boomboxer – Super Paper Mario
- Boomdinero – Wario Land: Shake It!
- Boomerang Bro – Super Mario Bros. 3
- Boomerang Bro – Mario & Luigi: Superstar Saga
- Booty Bird – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Bopapodamus – Donkey Kong Country Returns
- Bopping Toady – Super Mario Land 2: 6 Golden Coins
- Borp – Mario & Luigi: Bowser's Inside Story
- Boss Bass – Super Mario Bros. 3
- Bouncing Bullet Bill – Super Mario World 2: Yoshi's Island
- Boulder – Wario Land: Super Mario Land 3
- Bouncelisk – Donkey Kong Country: Tropical Freeze
- Bouncing Note – Mario Kart 7
- Bounty Bass – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Bow Balloon – Wario Land 4
- Bowbow – Donkey Kong (Game Boy)
- Bowling Ghost – Luigi's Mansion
- Bowling Goonie – Super Mario World 2: Yoshi's Island
- Bowser Stunner – New Super Mario Bros. U
- Bōtsu – Wario Land: Super Mario Land 3
- Bramball – New Super Mario Bros. Wii
- Brick Monster – Mario vs. Donkey Kong
- Brier – Yoshi Touch & Go
- Bristle – Paper Mario: The Thousand-Year Door
- Bristles – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Brolder – Super Mario 3D World
- Bronto Burt – Super Smash Bros. for Nintendo 3DS
- Broom – Super Mario Land 2: 6 Golden Coins
- Broozer – New Super Mario Bros.
- Brrr Bear – Wario Land 3
- Brutius Maximus Grouchimus – The Super Mario Bros. Super Show!
- Bubble Blooper – Mario & Luigi: Bowser's Inside Story
- Bubble Dayzee – Super Mario World 2: Yoshi's Island
- Buccanero – Wario Land: Shake It!
- Buckbot – Donkey Kong Country Returns
- Buckbomb – Donkey Kong Country Returns
- Bucket Head – Wario Land: Super Mario Land 3
- Bucky – Donkey Kong Jungle Beat
- Bucky – Donkey Kong Country: Tropical Freeze
- Buffaloafer – Donkey Kong Country: Tropical Freeze
- Buffy the Dolphin – Wario: Master of Disguise
- Būichi – Super Mario Land 2: 6 Golden Coins
- Bukubuku – Donkey Kong
- Bulber – New Super Mario Bros. Wii
- Bulborb – Super Smash Bros. Brawl
- Bulky Bob-omb – Paper Mario: The Thousand-Year Door
- Bull's-Eye Bill – Super Mario Bros. 3
- Bullet Biff – Super Mario Land
- Bullet Bill – Super Mario Bros.
- Bullet Bill Patch – Yoshi's Woolly World
- Bully – Super Mario 64
- Bully – Mario & Luigi: Partners in Time
- Bumbleprod – Wario Land: Shake It!
- Bumbler – Mario Pinball Land
- Bumpety Bomb – Super Smash Bros. for Nintendo 3DS
- Bumpty – Super Mario World 2: Yoshi's Island
- Bunbun – Super Mario Land
- Bungee Bud – Yoshi's Island DS
- Bungee Piranha – Yoshi's Island DS
- Buro-kun – Super Mario-Kun
- Burrbert – Yoshi's Woolly World
- Burt – Super Mario World 2: Yoshi's Island
- Buster Beetle – Super Mario Bros. 3
- Butatabi – Wario Land 4
- Butterfly – Super Mario 64
- Buzz – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Buzzbite – Donkey Kong Country Returns
- Buzz-Bomb – Nintendo Adventure Books
- Buzzsaw – Donkey Kong Country Returns
- Buzzy – Donkey Kong Country: Tropical Freeze
- Buzzy Beetle – Super Mario Bros.
- Bzzap! – Paper Mario
C
- Caccac – Mario & Luigi: Dream Team
- Cactus Jack – Super Mario World 2: Yoshi's Island
- Cactus Piranha Plant – Mario Kart: Double Dash!!
- Cage Beast – Wario World
- Cageberry – Donkey Kong Country Returns
- Caged Ghost – Super Mario World 2: Yoshi's Island
- Calm Amazing Flyin' Hammer Brother – Super Princess Peach
- Calm Cannon – Super Princess Peach
- Calm Chain Chomp – Super Princess Peach
- Calm Fishing Boo – Super Princess Peach
- Calm Hammer Bro – Super Princess Peach
- Calm Lakitu – Super Princess Peach
- Calm Volcano Plant – Super Princess Peach
- Calorite – Mario & Luigi: Bowser's Inside Story
- Candle – Super Paper Mario
- Cannoli Clan, The – Wario: Master of Disguise
- Capnap – Mario & Luigi: Dream Team
- Capture Kong – Mario vs. Donkey Kong 2: March of the Minis
- Carroboscis – Super Mario RPG: Legend of the Seven Stars
- Cat Banzai Bill – Super Mario 3D World
- Cat Bullet Bill – Super Mario 3D World
- Cat Goomba – Super Mario 3D World
- Cat O' 9 Tails – Donkey Kong Country 2: Diddy's Kong Quest
- Cataquack – Super Mario Sunshine
- Ceiling Surprise – Luigi's Mansion
- Centipede – Yoshi's Story
- Chain Chawful – Mario & Luigi: Bowser's Inside Story
- Chain Chomp – Super Mario Bros. 3
- Chain Chomplet – Super Mario Sunshine
- Chain-Saw Fish – Virtual Boy Wario Land
- Chandelure – Super Smash Bros. for Nintendo 3DS
- Char-char – Donkey Kong Country Returns
- Chargin' Chuck – Super Mario World
- Charvaargh – Super Mario 3D World
- Cheep Cheep – Super Mario Bros.
- Cheep Chomp – New Super Mario Bros.
- Cheesy Chester – Donkey Kong Country: Tropical Freeze
- Cherbil – Super Paper Mario
- Chicken – Super Mario Land
- Chicken Duck – Wario Land: Super Mario Land 3
- Chikako – Super Mario Land
- Chikuchiku – Donkey Kong (Game Boy)
- Chikunto – Super Mario Land 2: 6 Golden Coins
- Chikuri – Wario Land: Super Mario Land 3
- Chippy – Virtual Boy Wario Land
- Chizzle – Mario & Luigi: Dream Team
- Chomp – Super Mario World 2: Yoshi's Island
- Chomp – Donkey Kong Country Returns
- Chompasaurus – Donkey Kong Country: Tropical Freeze
- Chomp Bro – Mario & Luigi: Superstar Saga
- Chomp-Muncher – Nintendo Adventure Books
- Chomp Pup – Super Mario Galaxy
- Chomp Shark – Super Mario World 2: Yoshi's Island
- Chomps Jr. – Donkey Kong Country
- Chomps – Donkey Kong Country
- Choomba – Mario & Luigi: Bowser's Inside Story
- Choppa – Super Paper Mario
- Choppah – Super Mario Galaxy 2
- Chow – Super Mario RPG: Legend of the Seven Stars
- Chromeba – Super Paper Mario
- Chuboomba – Mario & Luigi: Bowser's Inside Story
- Chuck Guy (Chucklehuck Woods) – Mario & Luigi: Superstar Saga
- Chuck Guy (Guffawha Ruins) – Mario & Luigi: Superstar Saga
- Chuckie – Club Nintendo
- Chuckorok – Mario & Luigi: Superstar Saga
- Chuckya – Super Mario 64
- Chum Chucker Charlie – Donkey Kong Country: Tropical Freeze
- Chun-Li – Club Nintendo
- Chūta – Wario Land II
- Circling Boo Buddies – Super Mario World
- Circus Kong – Mario vs. Donkey Kong 2: March of the Minis
- Clam – Yoshi's Story
- Clambo – Donkey Kong Country
- Clampy – New Super Mario Bros. Wii
- Clawdaddy – Super Mario World 2: Yoshi's Island
- Cleft – Paper Mario
- Cleftor – Paper Mario: The Thousand-Year Door
- Click-Clack – Donkey Kong Country 2: Diddy's Kong Quest
- Climbing Koopa – Super Mario World
- Cling Cobra – Donkey Kong Country Returns
- Clip Guy – Paper Mario: Sticker Star
- Cloaker – Super Mario RPG: Legend of the Seven Stars
- Clockwork Soldiers – Luigi's Mansion
- Cloud Drop – Super Mario World 2: Yoshi's Island
- Clog Monster – The Super Mario Bros. Super Show!
- Clubba – Paper Mario
- Clubberskull – Super Smash Bros. for Nintendo 3DS
- Clubosaur – Wario World
- Cluckboom – Super Mario Galaxy
- Clumph – Mario & Luigi: Superstar Saga
- Cluster – Super Mario RPG: Legend of the Seven Stars
- Coalbit – Mario & Luigi: Bowser's Inside Story
- Cobra – Wario World
- Cobrat – Super Mario Bros. 2
- Cocoknight – Mario & Luigi: Dream Team
- Cocoknight R – Mario & Luigi: Dream Team
- Coconutter – Mario & Luigi: Partners in Time
- Coin Bandit – Super Mario World 2: Yoshi's Island
- Coin Coffer – Super Mario 3D Land
- Colossal Koopa Paratroopa – Super Mario Bros. 3
- ComBat – Yoshi's Story
- Conkdor – Super Mario 3D World
- Cook – Wario Land II
- Coo Coo – Super Mario Sunshine
- Coo-Coo – Virtual Boy Wario Land
- Cool Kong – Mario vs. Donkey Kong 2: March of the Minis
- Cooligan – New Super Mario Bros. Wii
- Copta – Super Paper Mario
- Cosmic Clone – Super Mario Galaxy 2
- Count Richtertoffen – Wario Land 3
- Crabber – Super Mario Galaxy
- Crabble – Yoshi's Island DS
- Crackpot – Wario Land: Shake It!
- Cractus – Wario Land 4
- Cractyl – Wario World
- Crash Kong – Mario vs. Donkey Kong 2: March of the Minis
- Craw-Daddy – Paper Mario: The Thousand-Year Door
- Crawful – Mario & Luigi: Bowser's Inside Story
- Crazee Dayzee – Super Mario World 2: Yoshi's Island
- Creeper – Luigi's Mansion: Dark Moon
- Crimewave Clyde – The Adventures of Super Mario Bros. 3
- Crocodile – The Super Mario Bros. Super Show!
- Croctopus – Donkey Kong Country
- Crook – Super Mario RPG: Legend of the Seven Stars
- Crowber – New Super Mario Bros.
- Crusher Blargg – Yoshi's Island DS
- Cryogonal – Super Smash Bros. for Nintendo 3DS
- Crystal Creature – Wario World
- Crystal Entity – Wario World
- Cucco – Super Smash Bros. for Nintendo 3DS
- Cursya – Super Paper Mario
- Cyborca – Wario: Master of Disguise
- Cymbal Bush – Paper Mario
D
- D-Bat – Wario Land II
- D.D. – Wario Land: Super Mario Land 3
- DaVincheese – Wario: Master of Disguise
- Dancing Spear Guy – Super Mario World 2: Yoshi's Island
- Dansupaidā – Donkey Kong Jungle Beat
- Dangling Ghost – Super Mario World 2: Yoshi's Island
- Daphne – Super Smash Bros. for Nintendo 3DS
- Dark Barribad – Super Paper Mario
- Dark Block – Mario & Luigi: Dream Team
- Dark Boo – Paper Mario: The Thousand-Year Door
- Dark Boomboxer – Super Paper Mario
- Dark Boomerang Bro – Super Paper Mario
- Dark Bristle – Paper Mario: The Thousand-Year Door
- Dark Cherbil – Super Paper Mario
- Dark Chomp – Super Paper Mario
- Dark Choppa – Super Paper Mario
- Dark Cleft – Super Paper Mario
- Dark Clubba – Super Paper Mario
- Dark Cursya – Super Paper Mario
- Dark Dark Boo – Super Paper Mario
- Dark Dayzee – Super Paper Mario
- Dark Dull Bones – Super Paper Mario
- Dark Eeligon – Super Paper Mario
- Dark Fawful Bomb – Mario & Luigi: Bowser's Inside Story
- Dark Fawful Guy – Mario & Luigi: Bowser's Inside Story
- Dark Fire Bro – Super Paper Mario
- Dark Fuzzy – Super Paper Mario
- Dark Goomba – Super Paper Mario
- Dark Growmeba – Super Paper Mario
- Dark Hammer Bro – Super Paper Mario
- Dark Headbonk Goomba – Super Paper Mario
- Dark Heavy Cursya – Super Paper Mario
- Dark Jawbus – Super Paper Mario
- Dark Koopa – Paper Mario: The Thousand-Year Door
- Dark Koopa – Super Paper Mario
- Dark Koopatrol – Paper Mario: The Thousand-Year Door
- Dark Koopatrol – Super Paper Mario
- Dark Longator – Super Paper Mario
- Dark Magiblot – Super Paper Mario
- Dark Magikoopa – Super Paper Mario
- Dark Mechawful – Mario & Luigi: Bowser's Inside Story
- Dark Mechawful.5 – Mario & Luigi: Bowser's Inside Story
- Dark Megabite – Super Paper Mario
- Dark Muth – Super Paper Mario
- Dark Ninjoe – Super Paper Mario
- Dark Paragoomba – Super Paper Mario
- Dark Pigarithm – Super Paper Mario
- Dark Pokey – Super Paper Mario
- Dark Puff – Paper Mario: The Thousand-Year Door
- Dark Reversya Cursya – Super Paper Mario
- Dark Ruff Puff – Super Paper Mario
- Dark Satellmite – Mario & Luigi: Bowser's Inside Story
- Dark Shlurp – Super Paper Mario
- Dark Skellobit – Super Paper Mario
- Dark Spania – Super Paper Mario
- Dark Spike Top – Super Paper Mario
- Dark Spiked Goomba – Super Paper Mario
- Dark Spiky Skellobit – Super Paper Mario
- Dark Spiny – Super Paper Mario
- Dark Sproing-Oing – Super Paper Mario
- Dark Squiglet – Super Paper Mario
- Dark Stone Buzzy – Super Paper Mario
- Dark Striker – Super Paper Mario
- Dark Tech Cursya – Super Paper Mario
- Dark Tileoid – Super Paper Mario
- Dark Tortoise – Virtual Boy Wario Land
- Dark Trashure – Mario & Luigi: Bowser's Inside Story
- Dark Wizzerd – Paper Mario: The Thousand-Year Door
- Darknut – Super Smash Bros. for Nintendo 3DS
- Dasutoman – Donkey Kong (Game Boy)
- Dave – Wario: Master of Disguise
- Debull – Yoshi's Island DS
- Deburina – Wario Land 4
- Deep Cheep – New Super Mario Bros.
- Demon Bat – Wario Land: Super Mario Land 3
- Denden – Wario Land 4
- Devil Car – Super Smash Bros. for Nintendo 3DS
- Dhalsim – Club Nintendo
- Diamond Troll – WarioWare: Twisted!
- Dice – Wario Land 4
- Digga – Super Mario Galaxy 2
- Dino Rhino – Super Mario World
- Dino-Torch – Super Mario World
- Dinosaurs, The – WarioWare: Twisted!
- Disappearing Boo Buddies – Super Mario World
- Diva's Lips – Wario Land 4
- Dodorigesu Jr. – Mario & Wario
- Dogu – Wrecking Crew '98
- Dokanto – Super Mario Land: 6 Golden Coins
- Dondon – Super Mario Land 2: 6 Golden Coins
- Door Spirit – Wario World
- Doppel – Super Mario RPG: Legend of the Seven Stars
- Dōryī – Donkey Kong (Game Boy)
- Dotty – Donkey Kong (Game Boy)
- Doughnuteer – Wario Land 3
- Dovo – Wario's Woods
- Dozy – Donkey Kong Country: Tropical Freeze
- Do-Drop – Yoshi's Story
- Dr. Freezegood – Super Mario World 2: Yoshi's Island
- Dr. Shroob – Mario & Luigi: Partners in Time
- Dr. Sporis Von Fungenstein – Nintendo Adventure Books
- Dr. Wily – Club Nintendo
- Draglet – Super Mario 3D Land
- Dragoneel – New Super Mario Bros. U
- Dragoneel (purple) – New Super Mario Bros. U
- Dragonfly – Mario Paint
- Dreamcap – Mario & Luigi: Dream Team
- Dreamcap Captain – Mario & Luigi: Dream Team
- Dreamcap Captain R – Mario & Luigi: Dream Team
- Dreamcap R – Mario & Luigi: Dream Team
- Dreamy Bob-omb – Mario & Luigi: Dream Team
- Dreamy Goomba – Mario & Luigi: Dream Team
- Dreamy Paratroopa – Mario & Luigi: Dream Team
- Dreamy Sandoon – Mario & Luigi: Dream Team
- Dreamy Shy Guy – Mario & Luigi: Dream Team
- Drillbit Crab – Mario & Luigi: Bowser's Inside Story
- Dromba – Mario & Luigi: Dream Team
- Drool Hard – Yoshi's Island DS
- Dropper – Wario Land: Super Mario Land 3
- Dry Bones – Super Mario Bros. 3
- Dry Bones – Mario & Luigi: Superstar Saga
- Dudim Phreykunoutonthis – Super Mario World 2: Yoshi's Island
- Duke, Lulu and Rockman – Super Mario World (television series)
- Dull Bones – Paper Mario: The Thousand-Year Door
- Duplighost – Paper Mario
- Durapurl – Mario & Luigi: Dream Team
E
- Edibilis Boringus – Super Mario World 2: Yoshi's Island
- Eel – Yoshi's Story
- Eeker – Mario & Luigi: Superstar Saga
- Eeligon – Super Paper Mario
- Eel – Wario Land II
- Eep Cheep – New Super Mario Bros. Wii
- Eerie – Super Mario World
- Egg Pawn – Mario & Sonic at the Olympic Games
- Eggbert – Super Mario RPG: Legend of the Seven Stars
- Egg-enut – Yoshi's Island DS
- Eggo-Dil – Super Mario World 2: Yoshi's Island
- Eggplant Man – Wrecking Crew
- Eggplant Warrior – Wario Land 4
- Eggrobo – Super Smash Bros. for Nintendo 3DS
- Elasto-Piranha – Mario & Luigi: Partners in Time
- Electrasquid – Donkey Kong Country Returns
- Electric Pressure – Super Mario Galaxy 2
- Electroid – Donkey Kong Country Returns
- Electro-Koopa – Super Mario Sunshine
- Elephant – Wario World
- Elephant Ogre – WarioWare: Smooth Moves
- Elite Boom Guy – Mario & Luigi: Partners in Time
- Elite Goombule – Mario & Luigi: Bowser's Inside Story
- Elite Octoomba – Super Mario Galaxy 2
- Elite Troopea – Mario & Luigi: Superstar Saga
- Elite Wizzerd – Paper Mario: The Thousand-Year Door
- Elite X-Naut – Paper Mario: The Thousand-Year Door
- Ember – Paper Mario: The Thousand-Year Door
- Enigma – Super Mario RPG: Legend of the Seven Stars
- Evil Coin – Hotel Mario
- Eyepi'illo – Mario & Luigi: Dream Team
F
- Face Ball – Virtual Boy Wario Land
- Faiachū – Donkey Kong (Game Boy)
- Fake Block – Super Mario 3D Land
- Fake Yoshi – Yoshi's New Island
- Fang – Super Mario World 2: Yoshi's Island
- Fangfish – Donkey Kong Land
- Fat Guy – Super Mario World 2: Yoshi's Island
- Fattington – Wario World
- Fawflant – Mario & Luigi: Bowser's Inside Story
- Fawflopper – Mario & Luigi: Bowser's Inside Story
- Fawful Guy – Mario & Luigi: Bowser's Inside Story
- Fawfulcopter – Mario & Luigi: Bowser's Inside Story
- Fighter Fly – Mario Bros.
- Fink Flower – Super Mario RPG: Legend of the Seven Stars
- Fire – Donkey Kong
- Fireball – Mario Bros.
- Fireball – Super Mario RPG: Legend of the Seven Stars
- Fire Bar – Super Mario Bros.
- Fire Bro – Super Mario Bros. 3
- Fire Cannon – Super Mario Galaxy
- Fire Chomp – Super Mario Bros. 3
- Fire Jumping Piranha – Super Mario World
- Fire Nipper Plant – Super Mario Bros. 3
- Fire Piranha Plant – Super Mario Bros. 3
- Fire Ring – Mario Kart: Double Dash!!
- Fire Robota – Wario Land 3
- Fire Snake – Super Mario Bros. 3
- Fire Snake (Super Mario World) – Super Mario World
- Fire Snake (Wario Land 3) – Wario Land 3
- Fireball (Mario Bros.) – Mario Bros.
- Firehead Ned – Donkey Kong Country Returns
- Fish Poker Pops – Donkey Kong Country: Tropical Freeze
- Fish Bone – Super Mario World
- Fishin' Boo – Super Mario World
- Fishin' Lakitu – Super Mario World
- Fizzlit – Super Mario Galaxy 2
- Flage – Super Smash Bros. for Nintendo 3DS
- Flaky – The Super Mario Bros. Super Show!
- Flame – Wario Land II
- Fireball – Donkey Kong 64
- Flaming Antasmaton – Mario & Luigi: Dream Team
- Flaming Tiki Buzz – Donkey Kong Country Returns
- Flaptack – Super Mario Galaxy 2
- Flaptor – Captain Toad: Treasure Tracker
- Flash – Luigi's Mansion
- Fleeper – Yoshi's Island DS
- Flibbee – Mario & Luigi: Dream Team
- Flibbee R – Mario & Luigi: Dream Team
- Flifit – Mario & Luigi: Bowser's Inside Story
- Flightless Goonie – Super Mario World 2: Yoshi's Island
- Flightless Skeleton Goonie – Super Mario World 2: Yoshi's Island
- Flipbug – Super Mario Galaxy
- Fliprus – New Super Mario Bros. U
- Flipsting – Wario Land: Shake It!
- Flitter – Donkey Kong Country 2: Diddy's Kong Quest
- Floater – Wario Land: Super Mario Land 3
- Floating Bandinero – Wario Land: Shake It!
- Floating Face – Super Mario Land 2: 6 Golden Coins
- Flomp – Super Mario Galaxy 2
- Flooff – Yoshi's Woolly World
- Flophopper – Super Mario 3D Land
- Flopter – Super Mario 3D World
- Floro Cragnien – Super Paper Mario
- Floro Sapien – Super Paper Mario
- Flotsam – Donkey Kong Country 2: Diddy's Kong Quest
- Flounderflage – Mario & Luigi: Dream Team
- Flower Fuzzy – Paper Mario: The Thousand-Year Door
- Fluff – Donkey Kong Country: Tropical Freeze
- Fluffy – Nintendo Comics System
- Fluffy Phantom – Yoshi's Woolly World
- Fluffy the Dolphin – Wario: Master of Disguise
- Flurry – Super Mario Bros. 2
- Flutter – Super Mario World 2: Yoshi's Island
- Fly Fish – Super Mario Land 2: 6 Golden Coins
- Fly Guy – Super Mario World 2: Yoshi's Island
- Fly Guy R – Mario & Luigi: Dream Team
- Flying Fish – Luigi's Mansion
- Flying Fish – Wario Land II
- Flying Shy Guy – Yoshi's Story
- Flying Spade – Wario World
- Flytrap – Luigi's Mansion: Dark Moon
- Foo – New Super Mario Bros. Wii
- Fooly Flower – Super Mario World 2: Yoshi's Island
- Forkies – Super Mario RPG: Legend of the Seven Stars
- Foton – Super Paper Mario
- Frackle – Super Paper Mario
- Frame Boo – Yoshi's Woolly World
- Frame Chomp – Yoshi's Woolly World
- Freeze Cannon – Wario World
- Freezie – Mario Bros.
- Fritz – Donkey Kong Country: Tropical Freeze
- Frog – Yoshi's Story
- Frog Pirate – Super Mario World 2: Yoshi's Island
- Frogog – Super Mario RPG: Legend of the Seven Stars
- Frogoon – Donkey Kong Country Returns
- Frost Piranha – Paper Mario
- Fryguy – Nintendo Comics System
- Furafurawā – Donkey Kong (Game Boy)
- Fuzz – Wario's Woods
- Fuzzball – Luigi's Mansion: Dark Moon
- Fuzzbush – Mario & Luigi: Superstar Saga
- Fuzzler – Super Mario 3D World
- Fuzzy – Super Mario World 2: Yoshi's Island
- Fuzzy – Super Mario World
- Fuzzy Wiggler – Yoshi's Story
- Fwoosh – Super Mario 64
G
- Galactic Tornado – Super Mario Galaxy
- Galley Cat – Wario: Master of Disguise
- Gale Hawg – Donkey Kong Jungle Beat
- Galoomba – Super Mario World
- Ganchan – Super Mario Land
- Gao – Super Mario Land
- Garbage Can Ghost – Luigi's Mansion
- Gargantua Blargg – Super Mario World 2: Yoshi's Island
- Gary – Super Paper Mario
- Gastly – Super Smash Bros. for Nintendo 3DS
- Gaugau – Wario Land: Super Mario Land 3
- Gawbus – Super Paper Mario
- Geckit – Super Mario RPG: Legend of the Seven Stars
- Gecko – Super Mario RPG: Legend of the Seven Stars
- Geemer – Super Smash Bros. for Nintendo 3DS
- Georgette Jelly – Super Mario World 2: Yoshi's Island
- Gen Kottsu – Super Mario Land 2: 6 Golden Coins
- Ghost – Donkey Kong 64
- Ghost – Super Smash Bros. for Nintendo 3DS
- Ghost – Wario Land II
- Ghost Piranha – Yoshi's Island DS
- Ghoul Guy – Mario & Luigi: Partners in Time
- Ghoul Shroom – Super Paper Mario
- Giant Ninji – Super Mario Advance
- Giant Pillar – Donkey Kong Country Returns
- Giant Stu – Super Mario Sunshine
- Gigabite – Super Paper Mario
- Glad Blooper – Super Princess Peach
- Glad Bob-omb – Super Princess Peach
- Glad Fang – Super Princess Peach
- Glad Parabomb – Super Princess Peach
- Glad Piranha Plant – Super Princess Peach
- Glad Ptooie – Super Princess Peach
- Glad Red Koopa – Super Princess Peach
- Glad Red Paratroopa – Super Princess Peach
- Glad Torpedo Ted – Super Princess Peach
- Glam Lakitu – Mario & Luigi: Bowser's Inside Story
- Gleamin' Bream – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Glide Guy – Yoshi's Island DS
- GLOM – Nintendo Adventure Books
- Gloomba – Paper Mario
- Glorpedo – Super Mario Sunshine
- Glum Reaper – Super Mario RPG: Legend of the Seven Stars
- Glurp – Mario & Luigi: Superstar Saga
- Gnarantula – Mario & Luigi: Partners in Time
- Gnat – Mario Paint
- Gnaw – Super Paper Mario
- Gnawty – Donkey Kong Country
- Gnip – Super Paper Mario
- Gobber – Luigi's Mansion: Dark Moon
- Gobblin – Yoshi's Island DS
- Goboten – Wario Land: Super Mario Land 3
- Goggley-Blade – Wario Land 4
- Gold Beanie – Mario & Luigi: Superstar Saga
- Gold Boo – New Super Mario Bros. 2
- Gold Bowser Statue – Super Mario World
- Gold Cheep Cheep – New Super Mario Bros. 2
- Gold Ghost – Luigi's Mansion
- Gold Goomba – Super Mario RPG: Legend of the Seven Stars
- Gold Greenie – Luigi's Mansion: Dark Moon
- Gold Hammer Bro – New Super Mario Bros. 2
- Gold Koopeleon – Mario & Luigi: Partners in Time
- Gold Mouse – Luigi's Mansion
- Gold Piranha Plant – New Super Mario Bros. 2
- Golden Chomp – Super Mario Galaxy
- Golem – Donkey Kong (Game Boy)
- Gooey – Wario: Master of Disguise
- Gooey Goon – Yoshi's Island DS
- Goomba – Super Mario Bros.
- Goomba Mummy – The Super Mario Bros. Super Show!
- Goomba R – Mario & Luigi: Dream Team
- Goomba Tower – Super Mario 3D Land
- Goombeetle – Super Mario Galaxy
- Goombrat – New Super Mario Bros. U
- Goomerang Brother – Nintendo Adventure Books
- Goombo – Super Mario Land
- Goombule – Mario & Luigi: Bowser's Inside Story
- Goomdiver – Mario & Luigi: Superstar Saga
- Goonie – Super Mario World 2: Yoshi's Island
- Gordo – Donkey Kong Country: Tropical Freeze
- Gordo – Super Smash Bros. for Nintendo 3DS
- Gorgon – Super Mario RPG: Legend of the Seven Stars
- Goronto – Super Mario Land 2: 6 Golden Coins
- Gotchawrench – Wrecking Crew
- Grab-bot – Wario Land 3
- Grabbing Ghost – Luigi's Mansion
- Gray Magikoopa – Paper Mario
- Greaper – Super Mario RPG: Legend of the Seven Stars
- Green Boo – Super Mario Bros. Deluxe
- Green Enemy – Wario Land 4
- Green Finley – Donkey Kong Country: Tropical Freeze
- Green fish – Donkey Kong Country: Tropical Freeze
- Green Fuzzy – Paper Mario
- Green Glove – Super Mario World 2: Yoshi's Island
- Green Magikoopa – Paper Mario
- Green Shell – Yoshi's Safari
- Greenie – Luigi's Mansion: Dark Moon
- Grim Leecher – Super Mario World 2: Yoshi's Island
- Grindel – Super Mario 64
- Gringill – Super Mario Galaxy
- Gritty Goomba (Gwarhar Lagoon) – Mario & Luigi: Superstar Saga
- Gritty Goomba (Teehee Valley) – Mario & Luigi: Superstar Saga
- Gromba – Mario & Luigi: Dream Team
- Groove Guy – Paper Mario
- Growmeba – Super Paper Mario
- Grrrol – New Super Mario Bros. U
- Grubby – Super Mario Land 2: 6 Golden Coins
- Grumbell – Mario & Luigi: Dream Team
- Grunt – Super Mario World 2: Yoshi's Island
- Grunt – Wario Land II
- Guard Door – Paper Mario
- Guardian Shroob – Mario & Luigi: Partners in Time
- Guerilla – Super Mario RPG: Legend of the Seven Stars
- Gugi – Wario Land II
- Gulpit – Paper Mario
- Gummit – Super Mario Galaxy 2
- Gunion – Super Mario Land
- Gunner Guy – Mario & Luigi: Superstar Saga
- Guragura – Wario Land: Super Mario Land 3
- Gūrindai – New Super Mario Bros. U
- Gusty – Super Mario World 2: Yoshi's Island
- Gyātoru – Donkey Kong (Game Boy)
H
- HAL 9001 – The Super Mario Bros. Super Show!
- Hammer Bro – Super Mario Bros.
- Hammer-bot – Wario Land 3
- Handfake – Mario & Luigi: Partners in Time
- Hanging Blow Hard – Yoshi's Island DS
- Harey – Donkey Kong Country: Tropical Freeze
- Haridama – Wario Land 3
- Harimen – Wario Land 4
- Harimenzetto – Wario Land 4
- Harisu – Wario Land: Super Mario Land 3
- Harold – Donkey Kong Country: Tropical Freeze
- Harrassimentia Phlyoverus – Super Mario World 2: Yoshi's Island
- Harry Hedgehog – Super Mario World 2: Yoshi's Island
- Headbonk Goomba – Super Paper Mario
- Heave-Ho – Super Mario 64
- Heavy Cursya – Super Paper Mario
- Heavy Para-Beetle – New Super Mario Bros. Wii
- Heavy Troopa – Super Mario RPG: Legend of the Seven Stars
- Hefty Goonie – Super Mario World 2: Yoshi's Island
- Helio – Super Mario RPG: Legend of the Seven Stars
- Helmut – Wario Land: Super Mario Land 3
- Henry and Orville – Luigi's Mansion
- Herman – The Adventures of Super Mario Bros. 3
- Herman Smirch – Nintendo Comics System
- Hermite Crab – Mario & Luigi: Dream Team
- Hermite Crab R – Mario & Luigi: Dream Team
- Hider – Luigi's Mansion: Dark Moon
- Hippopo – Super Mario RPG: Legend of the Seven Stars
- Hiyoko – Wario Land 4
- Hobgoblin – Super Mario RPG: Legend of the Seven Stars
- Hogarithm – Super Paper Mario
- Hoggus – Wario Land 4
- Hogwash – Donkey Kong Land
- Honen – Super Mario Land
- Honey-Bee – Virtual Boy Wario Land
- Hoo – Super Princess Peach
- Hook Guy – Yoshi's Woolly World
- Hooligon – Super Paper Mario
- Hoopster – Super Mario Bros. 2
- Hooraw – Mario & Luigi: Dream Team
- Hootie the Blue Fish – Super Mario World 2: Yoshi's Island
- Hootz – Donkey Kong Country: Tropical Freeze
- Hop-Chop – Super Mario 3D World
- Hopgoon – Donkey Kong Country Returns
- Horkus Porkus – Wario: Master of Disguise
- Horned Ant Trooper – Super Mario 3D World
- Hotaru – Wario Land 4
- Hot Dog (Yoshi's Woolly World) – Yoshi's Woolly World
- Hot Foot – Super Mario Bros. 3
- Hot Hootz – Donkey Kong Country: Tropical Freeze
- Hot Lips – Super Mario World 2: Yoshi's Island
- Hothead – Super Mario World
- Huckit Crab – New Super Mario Bros. Wii
- Humzee – Donkey Kong Country Returns
- Hurt Plant – Paper Mario
- Hyper Bald Cleft – Paper Mario: The Thousand-Year Door
- Hyper Cleft – Paper Mario
- Hyper Goomba – Paper Mario
- Hyper Paragoomba – Paper Mario: The Thousand-Year Door
- Hyper Spiky Goomba – Paper Mario: The Thousand-Year Door
I
- Icead – Mario & Luigi: Dream Team
- Ice Bat – Super Mario Galaxy
- Ice Bro – New Super Mario Bros. Wii
- Ice Cherbil – Super Paper Mario
- Ice Piranha Plant – New Super Mario Bros. U
- Ice Puff – Paper Mario: The Thousand-Year Door
- Ice Snifit – Mario & Luigi: Superstar Saga
- Icicle Mite – Wario World
- Ick Worm – Yoshi's Story
- Icy Spiked Ball – New Super Mario Bros. 2
- Iggy – Super Mario Bros. (film)
- Imomushi – Wario Land 4
- Inamazu – Wario Land II
- Incoming Chomp – Super Mario World 2: Yoshi's Island
- Inky Piranha Plant – Super Mario 3D Land
- Intern Shroob – Mario & Luigi: Partners in Time
- Invisighoul – Yoshi's Island DS
- Iridescent Glint Beetle – Super Smash Bros. for Nintendo 3DS
- Iron Cleft – Paper Mario: The Thousand-Year Door
- Itsunomanika Heihō – Super Mario World 2: Yoshi's Island
- Iwao – Wario Land 4
J
- Jack-in-the-Box – Super Mario Land 2: 6 Golden Coins
- Jack O' Goomba – Super Mario Galaxy
- Jack the Knife – Wario: Master of Disguise
- Jailgoon – Mario & Luigi: Bowser's Inside Story
- Jarvis – Luigi's Mansion
- Jawbus – Super Paper Mario
- Jawful – Super Mario RPG: Legend of the Seven Stars
- Jean de Fillet – Super Mario World 2: Yoshi's Island
- Jelectro – Super Mario Bros. 3
- Jellien – Super Paper Mario
- Jellopus – Wario Land: Shake It!
- Jelly Ghost – Yoshi's Story
- Jellybob – Wario Land 3
- Jellybob – Donkey Kong Country Returns
- Jellyfish – Yoshi's Story
- Jellybeam – New Super Mario Bros. Wii
- Jester – Super Mario RPG: Legend of the Seven Stars
- Jetpack Guy – Mario vs. Donkey Kong 2: March of the Minis
- Jinx Clone – Super Mario RPG: Legend of the Seven Stars
- Johnson – Super Paper Mario
- Johnson – Paper Mario: The Thousand-Year Door
- Jumping Blooper – Super Mario Sunshine
- Jumping Piranha Plant – Super Mario World
- Jungle Fuzzy – Paper Mario
- Junker Can – Mario & Luigi: Bowser's Inside Story
K
- K-9 – Super Mario RPG: Legend of the Seven Stars
- K9 Cannon – Wario: Master of Disguise
- KP Koopa – Paper Mario: The Thousand-Year Door
- KP Koopas – Paper Mario: The Thousand-Year Door
- KP Paratroopa – Paper Mario: The Thousand-Year Door
- Kab-omb – New Super Mario Bros.
- Kaboing – Donkey Kong Country 2: Diddy's Kong Quest
- Kaboom – Donkey Kong Country 2: Diddy's Kong Quest
- Kaboomba – Super Mario World 2: Yoshi's Island
- Kackle – Donkey Kong Country 2: Diddy's Kong Quest
- Kaentsubo – Wario Land 4
- Kamikaze Koopa – Super Mario World
- Kannon – Donkey Kong Country 2: Diddy's Kong Quest
- Kānyī – Donkey Kong (Game Boy)
- Karbine – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kasplat – Donkey Kong 64
- Ka-Thunk – Super Mario 3D World
- Kihunter – Super Smash Bros. for Nintendo 3DS
- Killer Chair – Super Mario 64
- King Bomb – Super Mario RPG: Legend of the Seven Stars
- King Kill – New Super Mario Bros. Wii (World 9-3)
- King Bill – New Super Mario Bros. Wii (World 9-8)
- KKDU – Club Nintendo
- Killer Kitty of the Caskervilles – The Super Mario Bros. Super Show!
- Klampon – Donkey Kong Country 2: Diddy's Kong Quest
- Klank – Donkey Kong Country 2: Diddy's Kong Quest
- Klaptrap – Donkey Kong Country
- Klasp – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Klepto – Super Mario 64
- Kleptoad – Super Mario Galaxy 2
- Klinger – Donkey Kong Country 2: Diddy's Kong Quest
- Kloak – Donkey Kong Country 2: Diddy's Kong Quest
- Klobber – Donkey Kong Country 2: Diddy's Kong Quest
- Klomp – Donkey Kong Country 2: Diddy's Kong Quest
- Klump – Donkey Kong Country
- Knik-Knak – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Knocka – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kobatto – Wario Land 3
- Kobble – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Koco – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Koffing – Super Smash Bros. for Nintendo 3DS
- Koin – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Koindozer – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kōmori – Donkey Kong (Game Boy)
- Kongā – Mario vs. Donkey Kong 2: March of the Minis
- Konotako – Wario Land: Super Mario Land 3
- Koopa Paratroopa – Super Mario Bros.
- Koopa Striker – Super Paper Mario
- Koopa Troopa – Super Mario Bros.
- Koopatrol – Paper Mario
- Koopeleon – Mario & Luigi: Partners in Time
- Kop – Donkey Kong 64
- Kopter – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kosha – Donkey Kong 64
- Kowalee – Donkey Kong Country Returns
- Kracka – Donkey Kong Land III
- Krash – Donkey Kong Country
- Kriffid – Super Mario RPG: Legend of the Seven Stars
- Krimp – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kritter – Donkey Kong Country
- Kroc – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Krook – Donkey Kong Country 2: Diddy's Kong Quest
- Krubbish – Mario & Luigi: Dream Team
- Krumple – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kruncha – Donkey Kong Country 2: Diddy's Kong Quest
- Krusha – Donkey Kong Country
- Kuchuka – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kuff 'n' Klout – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Kumo – Super Mario Land
- Kuribo – Mario & Luigi: Bowser's Inside Story
- Kurokyura – Super Mario Land 2: 6 Golden Coins
- Kutlass – Donkey Kong Country 2: Diddy's Kong Quest
- Kyororo – Super Mario Land 2: 6 Golden Coins
- Kyotonbo – Super Mario Land 2: 6 Golden Coins
L
- Lakipea – Mario & Luigi: Superstar Saga
- Lakitu – Super Mario Bros.
- Lakitu in a Pipe – Super Mario World
- Lakitu King – Mario & Luigi: Bowser's Inside Story
- Lakitu R – Mario & Luigi: Dream Team
- Lakitufo – Mario & Luigi: Partners in Time
- Land Manta Ray – Wario World
- Lantern Ghost – Super Mario World 2: Yoshi's Island
- Large Milde – Super Mario World 2: Yoshi's Island
- Larson – Paper Mario: The Thousand-Year Door
- Laser Jigglefish – Wario World
- Laser Snifit – Mario & Luigi: Superstar Saga
- Lava Bubble – Super Mario Bros.
- Lava Bubble (blue) – Super Mario Galaxy
- Lava Bud – Paper Mario
- Lava Drop – Super Mario World 2: Yoshi's Island
- Lava Ghost – Yoshi's Story
- Lava Lotus – Super Mario Bros. 3
- Leaf Guy – Mario & Luigi: Bowser's Inside Story
- Ledge Hammer – Super Mario Galaxy 2
- Lemguin – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Lemmington – Donkey Kong Country: Tropical Freeze
- Lemmy Koopa – Super Mario Bros. 3
- Lena – Super Mario Bros. (film)
- Leoprank – Luigi's Mansion: Dark Moon
- Lethal Bob-omb – Mario & Luigi: Partners in Time
- Lethinium – Super Smash Bros. for Nintendo 3DS
- Leuko – Super Mario RPG: Legend of the Seven Stars
- Li'l Boo – Super Mario RPG: Legend of the Seven Stars
- Li'l Brr – Super Mario Galaxy
- Li'l Cinder – Super Mario Galaxy
- Li'l Smooch Spider – Yoshi's Woolly World
- Li'l Sparky – Super Mario World
- Li'l Springy – Super Mario Galaxy
- Limbo Bro (Guffawha Ruins) – Mario & Luigi: Superstar Saga
- Limbo Bro (Teehee Valley) – Mario & Luigi: Superstar Saga
- Limbo Guy – Yoshi's Story
- List of Boos in Luigi's Mansion – Luigi's Mansion
- Little Mouser – Super Mario World 2: Yoshi's Island
- Little Skull Mouser – Super Mario World 2: Yoshi's Island
- Lob-omb – Mario & Luigi: Dream Team
- Lob-omb R – Mario & Luigi: Dream Team
- Lobb – Mario Clash
- Loch Nestor – Super Mario World 2: Yoshi's Island
- Lockjaw – Donkey Kong Country 2: Diddy's Kong Quest
- Longadile – Super Paper Mario
- Longator – Super Paper Mario
- Love Bubble – Mario & Luigi: Partners in Time
- Lumpy – Wario Land 3
- Lunge Fish – Super Mario World 2: Yoshi's Island
- Lurchin – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Lurchin – Wario: Master of Disguise
- Lurchthorn – Super Smash Bros. for Nintendo 3DS
M
- M. Bush – Paper Mario
- Mace Guy – Super Mario World 2: Yoshi's Island
- Machine Made – Super Mario RPG: Legend of the Seven Stars
- Mad Banzai Bill – Super Princess Peach
- Mad Big Boo – Super Princess Peach
- Mad Blurp – Super Princess Peach
- Mad Boo – Super Princess Peach
- Mad Bullet Bill – Super Princess Peach
- Mad Goomba – Super Princess Peach
- Mad Green Koopa – Super Princess Peach
- Mad Green Paratroopa – Super Princess Peach
- Mad Mallet – Super Mario RPG: Legend of the Seven Stars
- Mad Mecha-Spike Top – Super Princess Peach
- Mad Piano – Super Mario 64
- Mad Pokey – Super Princess Peach
- Mad Red Paragoomba – Super Princess Peach
- Mad Scienstein – Wario Land 3
- Mad Spike – Super Princess Peach
- Madame Clairvoya – Luigi's Mansion
- Madbomber – Wario Blast: Featuring Bomberman!
- Madpole – Super Mario 3D World
- Madzilla – The Adventures of Super Mario Bros. 3
- Magifoofa – Mario & Luigi: Bowser's Inside Story
- Magician – Wario World
- Magikoopa – Super Mario World
- Magmaargh – Super Mario Galaxy 2
- Magmad – Mario & Luigi: Dream Team
- Magmaw – Super Mario Galaxy 2
- Magmite – Super Mario RPG: Legend of the Seven Stars
- Magmus – Super Mario RPG: Legend of the Seven Stars
- Magon – Wario World
- Mahva – Super Smash Bros. for Nintendo 3DS
- Maizō – Wario Land: Super Mario Land 3
- Malakoopa – Super Mario RPG: Legend of the Seven Stars
- Malibut – Mario & Luigi: Superstar Saga
- Mama Saw – Donkey Kong Country: Tropical Freeze
- Mandibug – Super Mario Galaxy
- Manky Kong – Donkey Kong Country
- Manta – Super Mario 64
- Maraca Guy – Paper Mario: Sticker Star
- Mariachi Guy – Paper Mario: Sticker Star
- Marumen – Wario Land 4
- Mask-Guy – Virtual Boy Wario Land
- Masked Ghoul – Super Mario Land 2: 6 Golden Coins
- Mastadoom – Super Mario RPG: Legend of the Seven Stars
- Mastah Mosquito – Virtual Boy Wario Land
- Master Crash – Paper Mario: The Thousand-Year Door
- Mattermouth – Super Mario Galaxy 2
- Mawful Mole – Mario & Luigi: Bowser's Inside Story
- Mayu Bird – Wario Land 4
- Mecha-Blooper – Mario & Luigi: Superstar Saga
- Mecha Cheep – New Super Mario Bros. U
- Mecha-Chomp – Mario & Luigi: Superstar Saga
- Mechakoopa – Super Mario World
- Mechanical Fish – Wario Land 4
- Mechanical Zinger – Donkey Kong 64
- Mechawful – Mario & Luigi: Bowser's Inside Story
- Medi Guy – Paper Mario
- Mega Goomba – New Super Mario Bros. Wii
- Mega Guy – Super Mario Advance
- Mega Koopa – Super Paper Mario
- Mega Mole – Super Mario World
- Mega Muth – Super Paper Mario
- Mega Pokey – Super Mario Galaxy
- Mega Unagi – New Super Mario Bros.
- Megabite – Super Paper Mario
- Megonta – Super Smash Bros. for Nintendo 3DS
- Mekabon – Super Mario Land
- Mellow Kitty – Wario: Master of Disguise
- Melody Pianissima – Luigi's Mansion
- Men'ono – Wario Land 4
- Menhanmā – Wario Land 4
- Meowbomb – Super Paper Mario
- Metal Guy – Yoshi's New Island
- Metal Mawful Mole – Mario & Luigi: Bowser's Inside Story
- Mettaur – Super Smash Bros. for Nintendo 3DS
- Meteor – Super Mario Galaxy
- Mezzo Bomb – Super Mario RPG: Legend of the Seven Stars
- Micro Goomba – Super Mario Bros. 3
- Microbomb – Super Mario RPG: Legend of the Seven Stars
- Milde – Super Mario World 2: Yoshi's Island
- Mimic – Mario Hoops 3-on-3
- Mimic – Donkey Kong Country Returns
- Mimicutie – Super Smash Bros. for Nintendo 3DS
- Mincer – Donkey Kong Country
- Mini Bob-omb – Mario vs. Donkey Kong 2: March of the Minis
- Mini Crab – Mario vs. Donkey Kong 2: March of the Minis
- Mini Munchelangelo – Wario: Master of Disguise
- Mini Ninji – Mario vs. Donkey Kong
- Mini-Necky – Donkey Kong Country
- Mini Pi'illoid – Mario & Luigi: Dream Team
- Mini-Raven – Super Mario World 2: Yoshi's Island
- Mini Shy Guy – Mario vs. Donkey Kong
- Mini Spear Guy – Mario vs. Donkey Kong: Minis March Again!
- Mini Snifit – Mario vs. Donkey Kong 2: March of the Minis
- Mini-X-Yux – Paper Mario: The Thousand-Year Door
- Mini-Yux – Paper Mario: The Thousand-Year Door
- Mini-Z-Yux – Paper Mario: The Thousand-Year Door
- Minicula – Wario Land 4
- Minkey – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Miss Cluck – Yoshi's Woolly World
- Miss Petunia – Luigi's Mansion
- Missile Shell – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Moguramen – Wario Land 4
- Mōgyo – Super Mario Land 2: 6 Golden Coins
- Mole Guard – Donkey Kong Country Returns
- Mole Miner – Donkey Kong Country Returns
- Monchee – Game Boy Donkey Kong
- Moneybag – Super Mario 64
- Monocle Monica – Donkey Kong Country: Tropical Freeze
- Monoeye – Super Smash Bros. for Nintendo 3DS
- Monolift – Mario & Luigi: Dream Team
- Monolift R – Mario & Luigi: Dream Team
- Monstrous Magnet – Wario World
- Monty Mole – Super Mario World
- Monty Mole Patch – Yoshi's Woolly World
- Moon Cleft – Paper Mario: The Thousand-Year Door
- Morty Mole – Super Mario 3D Land
- Mostosti Vomitonus – Super Mario World 2: Yoshi's Island
- Mother Brain – WarioWare, Inc.: Mega Microgame$!
- Mouse – Luigi's Mansion: Dark Moon
- Mouser – The Super Mario Bros. Super Show!
- Mousersaurus Rex – The Super Mario Bros. Super Show!
- Mr. Bones – Luigi's Mansion
- Mr. Blizzard – Super Mario 64
- Mr. Cheeky – Wario: Master of Disguise
- Mr. I – Super Mario 64
- Mr. Kipper – Super Mario RPG: Legend of the Seven Stars
- Mr. Luggs – Luigi's Mansion
- Mr. Moon – Wario Land 3
- Mr. Sun – Wario Land 3
- Muckle – Super Mario RPG: Legend of the Seven Stars
- Mud Trooper – Captain Toad: Treasure Tracker
- Mukumuku – Super Mario RPG: Legend of the Seven Stars
- Mummer – Wario Land: Shake It!
- Mummy – Donkey Kong (Game Boy)
- Mummy Guy – Mario vs. Donkey Kong 2: March of the Minis
- Mummy Me – Captain Toad: Treasure Tracker
- Munchelangelo – Wario: Master of Disguise
- Muncher – Super Mario Bros. 3
- Muncher – Donkey Kong Country Returns
- Munchlesia – Paper Mario
- Mural Goomba – Paper Mario: Sticker Star
- Mural Koopa – Paper Mario: Sticker Star
- Muth – Super Paper Mario
N
- Nabbit – New Super Mario Bros. U
- Nana – Luigi's Mansion
- Naplock – Mario & Luigi: Bowser's Inside Story
- Napse – Mario & Luigi: Bowser's Inside Story
- Nastasia – Super Paper Mario
- Naval Bud – Super Mario World 2: Yoshi's Island
- Necky – Donkey Kong Country
- Needlenose – Super Mario World 2: Yoshi's Island
- Neek – Donkey Kong Country 2: Diddy's Kong Quest
- Nemo – Donkey Kong Land
- Nep-Enut – Super Mario World 2: Yoshi's Island
- Net Bomb – The Super Mario Bros. Super Show!
- Nibbla – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Nibbles – Paper Mario: The Thousand-Year Door
- Nicole, Pia and Balu – Club Nintendo
- Nigel B. Whistlebottom – Wario: Master of Disguise
- Ninja – Super Mario RPG: Legend of the Seven Stars
- Ninja Crow – Wario World
- Ninjerry – Super Paper Mario
- Ninji – Super Mario Bros. 2
- Ninjoe – Super Paper Mario
- Ninjohn – Super Paper Mario
- Nipper Dandelion – Yoshi's Island DS
- Nipper Plant – Super Mario Bros. 3
- Nipper Spore – Yoshi's Story
- Nipper Spore Patch – Yoshi's Woolly World
- Nitpicker – Donkey Kong (Game Boy)
- No.48 – Super Mario Land 2: 6 Golden Coins
- Nosedozer – Wario Land: Shake It!
- Noko Bombette – Super Mario Land 2: 6 Golden Coins
- Noobis – Wario: Master of Disguise
- Nooz – Mario & Luigi: Bowser's Inside Story
- Nutski – Super Smash Bros. for Nintendo 3DS
- Nyololin – Super Mario Land
O
- Octo – Yoshi's Safari
- Octoboo – Super Mario Galaxy 2
- Octoguy – Super Mario Galaxy
- Octohōn – Wario Land 3
- Octolot – Super Mario RPG: Legend of the Seven Stars
- Octoomba– Super Mario Galaxy
- Octorok – Super Smash Bros. Melee
- Ottō – Donkey Kong (Game Boy)
- Octopus – Super Mario Galaxy
- Octovader – Super Mario RPG: Legend of the Seven Stars
- Oerlikon – Super Mario RPG: Legend of the Seven Stars
- Officer Kicksworth – Wario: Master of Disguise
- Oho Jee – Mario & Luigi: Superstar Saga
- Oil – Donkey Kong (Game Boy)
- Oil Drum – Donkey Kong (game)
- Old Red-Mug – Wario World
- Onigiri – Wrecking Crew '98
- Onnanoko – Wrecking Crew '98
- Onomī – Wario Land 4
- Orange Flower – Luigi's Mansion: Dark Moon
- Orbison – Super Mario RPG: Legend of the Seven Stars
- Orne – Super Smash Bros. for Nintendo 3DS
- Ostro – Super Mario Bros. 2
- Oucher Glass – Mario & Luigi: Superstar Saga
- Oyazi – Wrecking Crew '98
P
- Paidan – Wario Land: Super Mario Land 3
- Painguin Tuck – Donkey Kong Country: Tropical Freeze
- Paint Guy – Paper Mario: Sticker Star
- Pak E. Derm – Yoshi's Story
- Pale Piranha – Paper Mario: The Thousand-Year Door
- Panser – Super Mario Bros. 2
- Papa Painguin – Donkey Kong Country: Tropical Freeze
- Paper-Cone Goomba – Paper Mario: Sticker Star
- Para-Beetle – Super Mario Bros. 3
- Para-Biddybud – Super Mario 3D Land
- Para-Goom – Wario Land 3
- Parabeanie – Mario & Luigi: Superstar Saga
- Parabomb – Super Mario World
- Parabones – Super Mario 3D World
- Parabuzzy – Paper Mario: The Thousand-Year Door
- Paragloomba – Paper Mario
- Paragoomba – Super Mario Bros. 3
- Parasol Waddle Dee – Super Smash Bros. for Nintendo 3DS
- Paratroopea – Mario & Luigi: Superstar Saga
- Pat the Bat – Hotel Mario
- PatrolMeow – Super Paper Mario
- Peahat – Super Smash Bros. for Nintendo 3DS
- Peahat Larva – Super Smash Bros. for Nintendo 3DS
- Pearl Bird – Wario Land 4
- Pecan – Wario Land: Super Mario Land 3
- Peek-a-boom – Wario Land: Shake It!
- Peepa – Super Mario 3D Land
- Peeper – Yoshi's Story
- Peeply – Yoshi's Woolly World
- Pelicrump – Mario & Luigi: Dream Team
- Pendril – Mario & Luigi: Bowser's Inside Story
- Pengoon – Wario Land: Shake It!
- Penguin – Wario Land II
- Penkoon – Wario Land: Super Mario Land 3
- Penpen – Donkey Kong (Game Boy)
- Pep – Mario & Luigi: Bowser's Inside Story
- Pestnut (Chucklehuck Woods) – Mario & Luigi: Superstar Saga
- Pestnut (Oho Ocean) – Mario & Luigi: Superstar Saga
- Petal Guy – Super Mario World 2: Yoshi's Island
- PET Bottom – Wario Land 4
- Petilil – Super Smash Bros. for Nintendo 3DS
- Petit Piranha – Paper Mario
- Phanto – Super Mario Bros. 2
- Phantom Ember – Paper Mario: The Thousand-Year Door
- Pharaoh Guy – Yoshi's Woolly World
- Pi'illodactyl – Mario & Luigi: Dream Team
- Pi'illodactyl R – Mario & Luigi: Dream Team
- Pick – Super Mario Land 2: 6 Golden Coins
- Pider – Paper Mario: The Thousand-Year Door
- Pidgit – Super Mario Bros. 2
- Pietro – The Super Mario Bros. Super Show!
- Pig Head Statue – Wario Land 4
- Pigarithm – Super Paper Mario
- Pikkarikun – Wario Land: Super Mario Land 3
- Pile Driver Micro-Goomba – Super Mario Bros. 3
- Pin Enemy – Wario Land 4
- Pinchley – Donkey Kong Country Returns
- Pinhead – Super Mario Galaxy 2
- Pinwheel – Super Mario RPG: Legend of the Seven Stars
- Pinwheel – Wario Land: Super Mario Land 3
- Pionpi – Super Mario Land
- Pipe Creatures – The Adventures of Super Mario Bros. 3
- Piranha Bud – Super Mario World 2: Yoshi's Island
- Piranha Creeper – Super Mario 3D World
- Piranha Pest – Yoshi's Story
- Piranha Planet – Mario & Luigi: Partners in Time
- Piranha Plant – Super Mario Bros.
- Piranha Plant – Paper Mario: The Thousand-Year Door
- Piranha Plant Statue – Super Mario Land 2: 6 Golden Coins
- Piranha Plorp – Mario & Luigi: Bowser's Inside Story
- Piranha Sprout – Captain Toad: Treasure Tracker
- Piranha Sprout – Yoshi's Story
- Piranha Sue – Nintendo Comics System
- Piranhabon – Super Mario Sunshine
- Pirate Goom – Wario Land: Super Mario Land 3
- Pirate Guy – Yoshi's Story
- Piro Dangle – Super Mario World 2: Yoshi's Island
- Piscatory Pete – Super Mario World 2: Yoshi's Island
- Pitchfork – Wario Land: Shake It!
- Plant Monster – The Super Mario Bros. Super Show!
- Plasma Wisp – Super Smash Bros. for Nintendo 3DS
- Pogobot – Donkey Kong Country Returns
- Pogo Guy – Yoshi's Story
- Pointy Tuck – Donkey Kong Country: Tropical Freeze
- Poison Blooper – Paper Mario: Sticker Star
- Poison Cherbil – Super Paper Mario
- Poison Mushroom – Super Mario Bros.: The Lost Levels
- Poison Pokey – Paper Mario: The Thousand-Year Door
- Poison Puff – Paper Mario: The Thousand-Year Door
- Pokey – Super Mario Bros. 2
- Pokey – Mario vs. Donkey Kong: Minis March Again!
- Pokey – Paper Mario: Sticker Star
- Pokey – Super Mario World 2: Yoshi's Island
- Pokey Mummy – Paper Mario
- Pokey Pom – Yoshi's Woolly World
- Pokey Sprout – Super Mario Sunshine
- Polar Bear – Super Smash Bros. Melee
- Polterguy – Mario vs. Donkey Kong 2: March of the Minis
- Polterpup – Luigi's Mansion: Dark Moon
- Pompon Flower – Super Mario Land
- Pooka – Super Smash Bros. for Nintendo 3DS
- Porcupal – Donkey Kong Country: Tropical Freeze
- Porcupo – Super Mario Bros. 2
- Porcupuffer – Super Mario World
- Poro – Super Mario Land 2: 6 Golden Coins
- Potted Ghost – Yoshi's Island DS
- Potted Spiked Fun Guy – Super Mario World 2: Yoshi's Island
- Pouncer – Wario Land: Super Mario Land 3
- Pounder – Super Mario RPG: Legend of the Seven Stars
- Poundette – Super Mario RPG: Legend of the Seven Stars
- Powan – DK: King of Swing
- Preying Mantas – Super Mario World 2: Yoshi's Island
- Prickly Piranha Plant – Super Mario Galaxy 2
- Prongo – Super Mario 3D Land
- Propeller Mūcho – Yoshi Touch & Go
- Propellion – Mario & Luigi: Dream Team
- Protobatter – Mario & Luigi: Bowser's Inside Story
- Projectilia Ritebakatchia – Super Mario World 2: Yoshi's Island
- Ptooie – Super Mario Bros. 3
- Puffer – Yoshi's Story
- Puffer-Cheep – Super Mario World
- Puffton – Donkey Kong Country: Tropical Freeze
- Pufftup – Donkey Kong Country: Tropical Freeze
- Puffy the Dolphin – Wario: Master of Disguise
- Puftup – Donkey Kong Country 2: Diddy's Kong Quest
- Pulsar – Super Mario RPG: Legend of the Seven Stars
- Punch – Wario Land II
- Punchy Paddy – Donkey Kong Country: Tropical Freeze
- Pupdozer – Super Mario Galaxy 2
- Puppox – Super Mario RPG: Legend of the Seven Stars
- Purple Bomber – Luigi's Mansion
- Purple Fang – Yoshi's New Island
- Purple Klaptrap – Donkey Kong 64
- Purple Mouse – Luigi's Mansion
- Purple Puncher – Luigi's Mansion
- Purupuru – Donkey Kong (Game Boy)
- Pushy Cat – Wario: Master of Disguise
- Putrid Piranha – Paper Mario
- Pwallop – Mario & Luigi: Bowser's Inside Story
- Pyrobot – Donkey Kong Country Returns
- Pyro Guy – Super Mario World 2: Yoshi's Island
- Pyrosphere – Super Mario RPG: Legend of the Seven Stars
Q
R
- RC Shroober – Mario & Luigi: Partners in Time
- Ragumo – Super Mario Land 2: 6 Golden Coins
- Ram – Wario World
- Ramenses II – Wario: Master of Disguise
- Rammerhead – Super Mario 3D World
- RamRam – Mario vs. Donkey Kong
- Rappy – Donkey Kong (Game Boy)
- Ratfael – Wario: Master of Disguise
- Rat Funk – Super Mario RPG: Legend of the Seven Stars
- Raven – Super Mario World 2: Yoshi's Island
- Rawbus – Super Paper Mario
- Rawk – Donkey Kong Country Returns
- Re-Koil – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Reacher – Super Mario RPG: Legend of the Seven Stars
- Reaper – Super Smash Bros. for Nintendo 3DS
- Reapette – Super Smash Bros. for Nintendo 3DS
- Recapitator – Wario Land: Shake It!
- Red Blargg – Super Mario World 2: Yoshi's Island
- Red Blurp – Yoshi's Story
- Red Boo – Super Mario Sunshine
- Red Chomp – Paper Mario: The Thousand-Year Door
- Red Coconutter – Mario & Luigi: Partners in Time
- Red Finley – Donkey Kong Country: Tropical Freeze
- Red I – Super Paper Mario
- Red Magiblot – Super Paper Mario
- Red Magikoopa – Paper Mario
- Red Paragoomba – Super Mario Bros. 3
- Red Skull Box – New Super Mario Bros. U
- Red Spike Top – Paper Mario: The Thousand-Year Door
- Red Urchin – Super Mario Galaxy
- ReDead – Super Smash Bros. Melee
- Remo Con – Super Mario RPG: Legend of the Seven Stars
- Reo – Super Smash Bros. for Nintendo 3DS
- Resident Demon – Donkey Kong 64
- Reversya Cursya – Super Paper Mario
- Rex – Super Mario World
- Rhinestone Goomba – Hotel Mario
- Rhomp – Super Mario Galaxy 2
- Ribbite – Super Mario RPG: Legend of the Seven Stars
- Ring Burner – Super Mario 3D World
- Ringosukī – Wario Land 4
- Rip Van Fish – Super Mario World
- River Piranha Plant – New Super Mario Bros. Wii
- Robo Bird – Wario Land 4
- Robo-Mouse – Wario Land 3
- Robo Shy Guy – The Super Mario Bros. Super Show!
- Robo Troopa – The Super Mario Bros. Super Show!
- Robokremling – Donkey Kong 64
- RoboUrchin – Wario: Master of Disguise
- Rob-omb – Super Mario RPG: Legend of the Seven Stars
- Robot Princess – The Adventures of Super Mario Bros. 3
- Robotic Bomb – Luigi's Mansion: Dark Moon
- Rocket Guy – Yoshi's Island DS
- Rockkroc – Donkey Kong Country
- Rocky Wrench – Super Mario Bros. 3
- Rocky Wrench (Super Mario Galaxy) – Super Mario Galaxy
- Roketon – Super Mario Land
- Rokkun – Donkey Kong (Game Boy)
- Rolltergeist – Wario: Master of Disguise
- Roof Slime – Wario Land 3
- Rooster – Wario Land II
- Ruff Puff – Paper Mario
- Ruffin' Tumble – Yoshi's Woolly World
- Ruffin' Tumble Patch – Yoshi's Woolly World
S
- Sackit – Super Mario RPG: Legend of the Seven Stars
- Sad Cheep Cheep – Super Princess Peach
- Sad Dry Bones – Super Princess Peach
- Sad Goomba – Super Princess Peach
- Sad Nipper Plant – Super Princess Peach
- Sad Paragoomba – Super Princess Peach
- Sad Raven – Super Princess Peach
- Sad Rex – Super Princess Peach
- Sad Spiny – Super Princess Peach
- Sairesu – Donkey Kong (Game Boy)
- Sammer Guy – Super Paper Mario
- Sand Hand – Wario Land 3
- Sandmaargh – Super Mario 3D Land
- Sandoon – Mario & Luigi: Dream Team
- Sarcopha Guy – Wario: Master of Disguise
- Sawfish – Wario Land II
- Sea Anenome – Yoshi's Story
- Sea Urchin – Donkey Kong Country: Tropical Freeze
- Scaratroopea – Mario & Luigi: Superstar Saga
- Scare-Oh! – Wario: Master of Disguise
- Scaredy Rat – New Super Mario Bros. Wii
- Scarracuda – Wario Land: Shake It!
- Schnautzel – Donkey Kong Country: Tropical Freeze
- Scorchit – Yoshi's Island DS
- Scram – Wario's Woods
- Scratchy the 'Fro Bug – WarioWare: Touched!
- Screaming Pillar – Donkey Kong Country Returns
- Screw – Super Mario Land 2: 6 Golden Coins
- Scutlet – Mario & Luigi: Bowser's Inside Story
- Scuttlebug – Super Mario 64
- Sea Cactus – Yoshi's Story
- Seed Weed – Wario: Master of Disguise
- Seedy Pod – Super Mario Sunshine
- Seedy Sally – Yoshi's Island DS
- Sentinel – Paper Mario
- Sentry Beam – Super Mario Galaxy
- Sergeant Guy Cannon – Mario & Luigi: Dream Team
- Sergeant Houndstooth – Wario: Master of Disguise
- Sergeant Kooperman – The Super Mario Bros. Super Show!
- Shadow – Super Mario RPG: Legend of the Seven Stars
- Shady Koopa – Paper Mario: The Thousand-Year Door
- Shady Paratroopa – Paper Mario: The Thousand-Year Door
- Shaman – Super Mario RPG: Legend of the Seven Stars
- Shark – Super Mario Land 2: 6 Golden Coins
- Sharpea – Mario & Luigi: Superstar Saga
- Shellcreeper – Mario Bros.
- Shieragutchi – Wario Land 4
- Shiny Bob-omb – Paper Mario: Sticker Star
- Shiny Buzzy Beetle – Paper Mario: Sticker Star
- Shiny Goomba – Paper Mario: Sticker Star
- Shiny Koopa Paratroopa – Paper Mario: Sticker Star
- Shiny Koopa Troopa – Paper Mario: Sticker Star
- Shiny Paragoomba – Paper Mario: Sticker Star
- Shiny-Cone Goomba – Paper Mario: Sticker Star
- Shisai – Super Mario Bros.: Peach-hime Kyushutsu Dai Sakusen!
- Shlorp – Super Paper Mario
- Shlurp – Super Paper Mario
- Shogun – Super Mario RPG: Legend of the Seven Stars
- Short Fuse – Super Mario World 2: Yoshi's Island
- Shortfuse – Wario Land: Shake It!
- Shotzo – Super Smash Bros. for Nintendo 3DS
- Shroid – Mario & Luigi: Partners in Time
- Shroob – Mario & Luigi: Partners in Time
- Shroob Rex – Mario & Luigi: Partners in Time
- Shroob-omb – Mario & Luigi: Partners in Time
- Shrooba Diver – Mario & Luigi: Partners in Time
- Shrooblet – Mario & Luigi: Partners in Time
- Shroobsworth – Mario & Luigi: Partners in Time
- Shroom – Donkey Kong 64
- Shuri – Donkey Kong Country 2: Diddy's Kong Quest
- Shy Guy – Super Mario Bros. 2
- Shy Guy – Luigi's Mansion
- Shy Guy Airtub – Mario & Luigi: Dream Team
- Shy Guy Airtub DX – Mario & Luigi: Dream Team
- Shy Guy Airtub R – Mario & Luigi: Dream Team
- Shy Guy Army – Paper Mario
- Shy Guy Lion – The Super Mario Bros. Super Show!
- Shy Guy R – Mario & Luigi: Dream Team
- Shy Ranger – Super Mario RPG: Legend of the Seven Stars
- Shy Squad – Paper Mario
- Shy Stack – Paper Mario
- Shyper – Super Mario RPG: Legend of the Seven Stars
- Shyster – Super Mario RPG: Legend of the Seven Stars
- Sickobratz – Club Nintendo
- Sidestepper – Mario Bros.
- Silky – Wario Land 3
- Silver Chomp – Super Mario Galaxy 2
- Silver Door Spirit – Wario World
- Sir Flap-A-Lot – Wario: Master of Disguise
- Sir Hop-A-Lot – Wario: Master of Disguise
- Sir Lance-A-Lot – Wario: Master of Disguise
- Sir Shovalot – Mario vs. Donkey Kong
- Sir Steal-A-Lot – Wario: Master of Disguise
- Sir Weston – Luigi's Mansion
- Sir Worth-A-Lot – Wario: Master of Disguise
- Skeeter – Super Mario 64
- Skeeter – New Super Mario Bros.
- Skeleton – Donkey Kong (Game Boy)
- Skeleton Bee – Super Mario Land 2: 6 Golden Coins
- Skeleton Bird – Wario Land 4
- Skeleton Goonie – Super Mario World 2: Yoshi's Island
- Skellobait – Super Paper Mario
- Skellobit – Super Paper Mario
- Skellobomber – Super Paper Mario
- Skellokey – Mario & Luigi: Partners in Time
- Skellyrex – Donkey Kong Country Returns
- Skidda – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Skipdrill – Mario & Luigi: Dream Team
- Skipdrill R – Mario & Luigi: Dream Team
- Skipsqueak – Super Mario 3D World
- Skittler – Donkey Kong Country Returns
- Skull Box – Super Mario World
- Skullcopter – Wario Land II
- Skullyrex – Donkey Kong Country Returns
- Skuttler – Super Smash Bros. for Nintendo 3DS
- Sky Guy – Super Mario World 2: Yoshi's Island
- Sky-Blue Spiny – Paper Mario: The Thousand-Year Door
- Slammer – Luigi's Mansion: Dark Moon
- Slaughterfork – Wario: Master of Disguise
- Sledge Bro – Super Mario Bros. 3
- Sleeping Spear Guy – Mario vs. Donkey Kong
- Sleepy Boo – Super Mario Sunshine
- Slim Bankshot – Luigi's Mansion
- Slime – Super Mario World 2: Yoshi's Island
- Slime Drop – Super Mario World 2: Yoshi's Island
- Slime Ghost – The Super Mario Bros. Super Show!
- Sling Shy – Super Mario RPG: Legend of the Seven Stars
- Slippa – Donkey Kong Country
- Slippa Jar – Donkey Kong Land
- Slithervine – Wario: Master of Disguise
- Slug – Yoshi's Story
- Slugger – Super Mario World 2: Yoshi's Island
- Sluggy – Super Mario World 2: Yoshi's Island
- Slurple – Super Mario Galaxy
- Small Sammer Guy – Super Paper Mario
- Smeech – Super Mario Galaxy 2
- Smelter – Super Mario RPG: Legend of the Seven Stars
- Smolderin' Stu – Super Mario Sunshine
- Smooch Spider – Yoshi's Woolly World
- Snackeral – Wario: Master of Disguise
- Snaggles – Donkey Kong Country Returns
- Snag-Stitch – Yoshi's Woolly World
- Snailicorn – New Super Mario Bros.
- Snake – Mario Clash
- Snapdragon – Super Mario RPG: Legend of the Seven Stars
- Snapjaw – Donkey Kong (Game Boy)
- Snapjaw (Donkey Kong Country 2: Diddy's Kong Quest) – Donkey Kong Country 2: Diddy's Kong Quest
- Snapper – Donkey Kong Land
- Snaps – Donkey Kong Country Returns
- Snawful – Mario & Luigi: Bowser's Inside Story
- Sneaker – Luigi's Mansion: Dark Moon
- Sneaky Spirit – Super Smash Bros. for Nintendo 3DS
- Sneed – Mario & Luigi: Bowser's Inside Story
- Sneek – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Snifaro – Mario & Luigi: Partners in Time
- Sniffle Thwomp – Mario & Luigi: Bowser's Inside Story
- Snifit – Super Mario Bros. 2
- Snifit – Mario vs. Donkey Kong: Minis March Again!
- Sniper Bill – Mario & Luigi: Superstar Saga
- Snoodle – Super Mario Galaxy 2
- Snoot – Yoshi's Woolly World
- Snooze-A-Koopa – Super Mario Sunshine
- Snoozorb – Mario & Luigi: Partners in Time
- Snorkle Fish – Yoshi's Story
- Snow Globe – Wario: Master of Disguise
- Snow Guy – Yoshi's Story
- Snow Pokey – Super Mario 3D World
- Snow Spike – New Super Mario Bros.
- Snufit – Super Mario 64
- Soarin' Stu – Super Mario Sunshine
- Soary – Donkey Kong Country: Tropical Freeze
- Sobarribad – Super Paper Mario
- Sockop – Mario & Luigi: Bowser's Inside Story
- Solo Toady – Super Mario World 2: Yoshi's Island
- Sombrero Guy – Paper Mario: Sticker Star
- Soopa Striker – Super Paper Mario
- Souflee – Super Smash Bros. for Nintendo 3DS
- Soul Bubble – Mario & Luigi: Partners in Time
- Sour Dodo – Donkey Kong Country: Tropical Freeze
- Space Troopa – The Super Mario Bros. Super Show!
- Spania – Paper Mario: The Thousand-Year Door
- Spark – Donkey Kong Jr.
- Spark – Luigi's Mansion
- Spear-Mask – Wario Land 4
- Spear-bot – Wario Land 3
- Spear Guy – Super Mario World 2: Yoshi's Island
- Spearhead – Wario Land 3
- Speedy Spirit – Luigi's Mansion
- Speedy Tuck – Donkey Kong Country: Tropical Freeze
- Sphinx Jr. – Wario: Master of Disguise
- Spider – Luigi's Mansion: Dark Moon
- Spider – Yoshi's Story
- Spike Super Mario Bros. (film)
- Spike – Super Mario Bros. 3
- Spike – Super Mario Bros. 2
- Spikeball – Yoshi Topsy-Turvy
- Spike Bass – New Super Mario Bros.
- Spike Blop – Mario & Luigi: Bowser's Inside Story
- Spike Bot – Wario Land 4
- Spike Cannon – Wario Land 4
- Spike Dud – Wario Land 4
- Spike Eel – Super Mario 3D Land
- Spike Koopa – Mario Party
- Spike Top – Super Mario World
- Spiked Fun Guy – Super Mario World 2: Yoshi's Island
- Spiky Gloomba – Paper Mario
- Spiked Goomba – Paper Mario
- Spiked Head – Wario Land 4
- Spikester – Super Mario RPG: Legend of the Seven Stars
- Spikey – Super Mario RPG: Legend of the Seven Stars
- Spikey – Super Mario Land 2: 6 Golden Coins
- Spiky Joe – Paper Mario: The Thousand-Year Door
- Spiky Parabuzzy – Paper Mario: The Thousand-Year Door
- Spiky Piranha Plant – Super Mario Galaxy 2
- Spiky Skellobait – Super Paper Mario
- Spiky Skellobit – Super Paper Mario
- Spiky Snifit – Mario & Luigi: Superstar Saga
- Spiky Topman – Super Mario Galaxy
- Spiky Tromp – Super Paper Mario
- Spinbat – Wario Land: Shake It!
- Spindel – Super Mario 64
- Spindrift – Super Mario 64
- Spinia – Paper Mario: The Thousand-Year Door
- Spiny – Super Mario Bros.
- Spiny – Donkey Kong Country 2: Diddy's Kong Quest
- Spiny) – Mario Kart 64
- Spiny Cheep Cheep – Super Mario Bros. 3
- Spiny Hermit – Super Mario Galaxy 2
- Spiny R – Mario & Luigi: Dream Team
- Spiny Shroopa – Mario & Luigi: Partners in Time
- Spiny Skipsqueak – Super Mario 3D World
- Spiny Tromp – Paper Mario
- Spirit Ball – Luigi's Mansion: Dark Moon
- Splorch – Super Mario 3D World
- Splounder – Super Mario 3D World
- Splunkin – New Super Mario Bros.
- Spook – Wario's Woods
- Spookum – Super Mario RPG: Legend of the Seven Stars
- Spooky – Luigi's Mansion
- Spooky – Super Mario World 2: Yoshi's Island
- Spoonatic – Wario: Master of Disguise
- Spray Fish – Super Mario World 2: Yoshi's Island
- Spring Topman – Super Mario Galaxy
- Springer – Super Mario RPG: Legend of the Seven Stars
- Spritzbloom – Mario & Luigi: Dream Team
- Sproing-Oing – Super Paper Mario
- Spud – Wario's Woods
- Spunia – Paper Mario: The Thousand-Year Door
- Spy Guy – Paper Mario
- Snoodle – Super Mario Galaxy 2
- Squabble – Wario: Master of Disguise
- Squasher – Wario Land 3
- Squeak (Wario's Woods) – Wario's Woods
- Squeekly – Donkey Kong Country Returns
- Squid – Donkey Kong (Game Boy)
- Squiddicus – Donkey Kong Country Returns
- Squidge – Donkey Kong Country
- Squidly – Donkey Kong Country Returns
- Squig – Super Paper Mario
- Squiggler – New Super Mario Bros.
- Squiglet – Super Paper Mario
- Squog – Super Paper Mario
- Squoinker – Super Paper Mario
- Stalfos – Super Smash Bros. for Nintendo 3DS
- Stalking Piranha Plant – New Super Mario Bros. Wii
- Stankulus – Wario: Master of Disguise
- Stanley the Talking Fish – Nintendo Comics System
- Star Cruster – Super Mario RPG: Legend of the Seven Stars
- Starbag – Super Mario Galaxy
- Starfish – Super Princess Peach
- Starkiss – Mario & Luigi: Superstar Saga
- Starman – Super Smash Bros. for Nintendo 3DS
- Starslap – Super Mario RPG: Legend of the Seven Stars
- State Troopa – The Super Mario Bros. Super Show!
- Stilt Guy – Super Mario World 2: Yoshi's Island
- Stilts – Donkey Kong Country Returns
- Stingby – Super Mario 3D Land
- Stinger – Super Mario RPG: Legend of the Seven Stars
- Stompin' Chomp – Yoshi's Island DS
- Stone-Cold Statue – Wario World
- Stone Buzzy – Super Paper Mario
- Stone Spike – New Super Mario Bros. Wii
- Stonk – Mario & Luigi: Bowser's Inside Story
- Storch – Mario & Luigi: Dream Team
- Stormtroopa – The Super Mario Bros. Super Show!
- Straw Head – Super Mario RPG: Legend of the Seven Stars
- Stretch – Super Mario Bros. 3
- Stretch – Super Mario World 2: Yoshi's Island
- Stretch Plant – Super Mario Galaxy
- Strollin' Stu – Super Mario Sunshine
- Strong Gobber – Luigi's Mansion: Dark Moon
- Strong Greenie – Luigi's Mansion: Dark Moon
- Strong Hider – Luigi's Mansion: Dark Moon
- Strong Slammer – Luigi's Mansion: Dark Moon
- Strong Sneaker – Luigi's Mansion: Dark Moon
- Stu – Super Mario Sunshine
- Stuffy the 5th – Wario: Master of Disguise
- Stumper – Captain Toad: Treasure Tracker
- Sub-Goomba – Mario & Luigi: Dream Team
- Submarine Guy – Yoshi's Story
- Sue Pea – Luigi's Mansion
- Sukōpī – Donkey Kong (Game Boy)
- Sultan Pasbah – The Super Mario Bros. Super Show!
- Sumo Bro – Super Mario World
- Sunaipā – Donkey Kong (Game Boy)
- Super Big Tap-Tap – Yoshi's Island DS
- Super Fly – Mario & Luigi: Superstar Saga
- Super Koopa – Super Mario World
- Super Snaggles – Donkey Kong Country Returns
- Super Thwomp – New Super Mario Bros.
- Super Thwomp (Mario Kart) – Super Mario Kart
- Super Troopa – The Super Mario Bros. Super Show!
- Support Shroob – Mario & Luigi: Partners in Time
- SurpriseMeow – Super Paper Mario
- Sushi – Super Mario 64
- Suu – Super Mario Land
- Swampire – Paper Mario: The Thousand-Year Door
- Swaphopper – Super Mario Galaxy 2
- Swirlwind – Donkey Kong Land
- Swipin' Stu – Super Mario Sunshine
- Swooper – Super Mario World
- Swooper Dooper – Donkey Kong Country: Tropical Freeze
- Swoopin' Stu – Super Mario Sunshine
- Swoopula – Paper Mario
- Swoopy – Donkey Kong Country 3: Dixie Kong's Double Trouble!
- Swordfish – Wario World
- Sworm – Mario & Luigi: Superstar Saga
T
- T-Rex – Super Mario World
- Tac – Super Smash Bros. for Nintendo 3DS
- Tack Soldier – Wario Land 4
- Tail Bob-omb – Super Mario 3D Land
- Tail Boo – Super Mario 3D Land
- Tail Bullet Bill – Super Mario 3D Land
- Tail Goomba – Super Mario 3D Land
- Tail Thwomp – Super Mario 3D Land
- Tamara – Super Mario Land 2: 6 Golden Coins
- Tanoomba – Mario & Luigi: Superstar Saga
- Tap-Tap – Super Mario World 2: Yoshi's Island
- Tap-Tap the Golden – Super Mario World 2: Yoshi's Island
- Targeting Ted – New Super Mario Bros. U
- Tashrooba – Mario & Luigi: Partners in Time
- Tech Cursya – Super Paper Mario
- Teehee Butterfly – Yoshi's Story
- Temper Terror – Luigi's Mansion
- Tenderling – Mario & Luigi: Bowser's Inside Story
- Terekuribō – Super Mario Land 2: 6 Golden Coins
- Terra Cotta – Super Mario RPG: Legend of the Seven Stars
- Terrapin – Super Mario RPG: Legend of the Seven Stars
- Terrible Portrait – Wario World
- Teruteru – Wario Land 3
- Thorb – Mario & Luigi: Dream Team
- Thorn-Ball – Virtual Boy Wario Land
- Thorn Weed – Wario: Master of Disguise
- Thorny – Mario Clash
- Thorny Flower – Super Mario Galaxy
- Thug Slug – Donkey Kong Country: Tropical Freeze
- Thunder Birdo – The Super Mario Bros. Super Show!
- Thunder Lakitu – Super Mario World 2: Yoshi's Island
- Thwack – Mario & Luigi: Partners in Time
- Thwack Totem – Mario & Luigi: Partners in Time
- Thwimp – Super Mario World
- Thwomp – Super Mario Bros. 3
- Thwomp Block – Donkey Kong (Game Boy)
- Ticksquawk – Mario & Luigi: Dream Team
- Tiki Boing – Donkey Kong Country Returns
- Tiki Bomber – Donkey Kong Country Returns
- Tiki Buzz – Donkey Kong Country Returns
- Tiki Doom – Donkey Kong Country Returns
- Tiki Goon – Donkey Kong Country Returns
- Tiki Pilot – Donkey Kong Country Returns
- Tiki Pop – Donkey Kong Country Returns
- Tiki Seeker – Donkey Kong Country Returns
- Tiki Tak Tribe – Donkey Kong Country Returns
- Tiki Tank – Donkey Kong Country Returns
- Tiki Torch – Donkey Kong Country Returns
- Tiki Tork – Donkey Kong Country Returns
- Tiki Zing – Donkey Kong Country Returns
- Tileoid B – Super Paper Mario
- Tileoid G – Super Paper Mario
- Tileoid R – Super Paper Mario
- Tileoid Y – Super Paper Mario
- Tin Soldier – Super Mario Land 2: 6 Golden Coins
- Toady – Super Mario World 2: Yoshi's Island
- Tobawani – Wario Land 4
- Tododesu – Donkey Kong (Game Boy)
- Toge – Wario Land 4
- Togemaru – Wario Land: Super Mario Land 3
- Togemen – Wario Land II
- Togenobi – Wario Land 4
- Togerobo – Wario Land 4
- Tokotoko – Super Mario Land
- Tomato – Donkey Kong 64
- Tonkachi – Wario Land 4
- Toober Guy – Yoshi's Island DS
- Toopa Striker – Super Paper Mario
- Toothberry – Donkey Kong Country Returns
- Toothy – Mario & Luigi: Bowser's Inside Story
- Tooty Kamen – Wario: Master of Disguise
- Topi – Super Smash Bros. Melee
- Topman – Super Mario Galaxy
- Topmini – Super Mario Galaxy
- Torion – Super Mario Land
- Tornado Spear-Mask – Wario Land 4
- Torpedo Ted – Super Mario World
- Tōsenbo – Super Mario Land 2: 6 Golden Coins
- Totsumen – Wario Land 4
- Toucan't – Donkey Kong Country: Tropical Freeze
- Tox Box – Super Mario 64
- Toy Car – Wario Land 4
- Train Bandit – Super Mario World 2: Yoshi's Island
- Trapdoor – Luigi's Mansion
- Trashure – Mario & Luigi: Bowser's Inside Story
- Treasure Pest – Wario: Master of Disguise
- Tree Bug – Wario Land 3
- Tree Freak – Wario World
- Treevil – Mario & Luigi: Bowser's Inside Story
- Troopea – Mario & Luigi: Superstar Saga
- Trouter – Super Mario Bros. 2
- Tsuriuo – Wario Land II
- Tsutanōmen – Donkey Kong (Game Boy)
- Tub-O-Troopa – Super Mario RPG: Legend of the Seven Stars
- Tuck – Donkey Kong Country: Tropical Freeze
- Tuff Fluff – Donkey Kong Country: Tropical Freeze
- Tuff Tuck – Donkey Kong Country: Tropical Freeze
- Tuffton – Donkey Kong Country: Tropical Freeze
- Turkeyjerk – Wario Land: Shake It!
- Tweester – Super Mario Bros. 3
- Tweeter – Super Mario Bros. 2
- Tweeter Bat – The Super Mario Bros. Super Show!
- Twirlip – Super Mario Galaxy 2
- Ty-Foo – Super Mario 3D World
- Tyrannosaurus Twins – Super Mario World
U
- Ucantia Defeatus – Super Mario World 2: Yoshi's Island
- Ukiki – Super Mario World 2: Yoshi's Island
- Ukiwani – Wario Land: Super Mario Land 3
- Ultra Char-char – Donkey Kong Country Returns
- Umbrelloid – Super Mario Land 2: 6 Golden Coins
- Unagi – Super Mario 64
- Unagi the Eel – Super Mario 64
- Uncle Grimmly – Luigi's Mansion
- Undergrunt – Super Mario Galaxy
- Underhand – Super Paper Mario
- Unera – Super Mario Land 2: 6 Golden Coins
- Unibō – Super Mario Land 2: 6 Golden Coins
- Unithorn – Wario World
- Urchin – Super Mario World
- Ussun – Donkey Kong (Game Boy)
- Utsuboankō – Wario Land 4
V
- Vampa White – The Super Mario Bros. Super Show!
- Vase – Virtual Boy Wario Land
- Vase-Based – Virtual Boy Wario Land
- Venus Flower Trap – Super Mario Galaxy 2
- Venus Guytrap – Wario Land: Shake It!
- Vincent Van Gore – Luigi's Mansion
- Vine Slime – Yoshi's Story
- Virus – Dr. Mario (game)
- Volcanic Debris – New Super Mario Bros.
- Volcannon – Wario Land: Shake It!
- Volcano Lotus – Super Mario Bros. 3
W
- Waddle Dee – Super Smash Bros. for Nintendo 3DS
- Waddle Doo – Super Smash Bros. for Nintendo 3DS
- Waddlewing – New Super Mario Bros. U
- Waiter – Luigi's Mansion
- Walbrick – Donkey Kong Country: Tropical Freeze
- Waldough – Donkey Kong Country: Tropical Freeze
- Walker Guy – Mario & Luigi: Dream Team
- Wall Lakitu – Super Mario World 2: Yoshi's Island
- Walleye – Super Mario 3D World
- Wallop – Super Mario 3D Land
- Walnut – Donkey Kong Country: Tropical Freeze
- Walruss – Super Princess Peach
- Wanderin' Goom – Wario Land: Super Mario Land 3
- Warpid – Super Paper Mario
- Warukio – Mario Party 3
- Watch – Wario Land: Super Mario Land 3
- Water Hand – Wario Land 3
- Water Shooter – Super Mario Galaxy
- Water Spark – Wario Land 3
- Webber – Wario Land 3
- Wereturtle – The Super Mario Bros. Super Show!
- Whale – Super Mario Bros. 2
- Whirly Fly Guy – Super Mario World 2: Yoshi's Island
- White Clubba – Paper Mario
- White Magikoopa – Paper Mario
- White puff – Wario Land: Super Mario Land 3
- Whimp – Super Mario Galaxy 2
- Whomp – Super Mario 64
- Wiggler – Super Mario World
- Wik – Yoshi's Woolly World
- Wild Ptooie Piranha – Super Mario World 2: Yoshi's Island
- Wild Wendell – Donkey Kong Country: Tropical Freeze
- Wind Spirit – Super Mario Sunshine
- Wind Winder – Wario World
- Windbag – Yoshi's Island DS
- Winged Anvil – Yoshi's Safari
- Wire Trap – Super Mario Sunshine
- Witch – Wario World
- Wizard – Wario Land II
- Wizenheimer – Super Mario World (television series)
- Wizzerd – Paper Mario: The Thousand-Year Door
- Wonder Thwack – Mario & Luigi: Partners in Time
- Woollet Bill – Yoshi's Woolly World
- Woozy Guy – Yoshi's Island DS
- Wrackle – Super Paper Mario
X
Y
- Yaburiki – Wario Land: Super Mario Land 3
- Yadorā – Wario Land: Super Mario Land 3
- Yaridovich – Super Mario RPG: Legend of the Seven Stars
- Yarikuri Obake – Wario Land: Super Mario Land 3
- Yellow Magiblot – Super Paper Mario
- Yellow Magikoopa – Paper Mario
- Yo Bro – Mario & Luigi: Superstar Saga
- Yoob – Mario & Luigi: Partners in Time
- Yurarin – Super Mario Land
- Yurarin Boo – Super Mario Land
- Yukimaru – Wario Land II
- Yeti – Wario Land 4
- Yux – Paper Mario: The Thousand-Year Door
- Yūrei – Wario Land 4
Z
- Z Koopa – Hotel Mario
- Z-Yux – Paper Mario: The Thousand-Year Door
- Zangief – Club Nintendo
- Zeostar – Super Mario RPG: Legend of the Seven Stars
- Zeus Guy – Super Mario World 2: Yoshi's Island
- Zigzag Lava Bubble – Super Mario World
- Zinger – Donkey Kong Country
- Zoing-Oing – Super Paper Mario
- Zombie – Wario Land II
- Zombie Goomba – The Super Mario Bros. Super Show!
- Zombie Shroom – Super Paper Mario