Super Radio's sandbox

I'm currently working on a List of extras in Donkey Kong Country: Tropical Freeze page. This is casual work I'm doing, so I might abandon it for a long time before I get around to it again. If this happens, you may take on the project and complete it. Anyway, feel free to give me any suggestions/corrections in the talk page!

I'll upload images at another time. Here's a video for reference.

List of extras in Donkey Kong Country: Tropical Freeze

Images

Many concept artworks depicting used and unused ideas are available in the game, and can be gradually unlocked in the Image Gallery by collecting Puzzle Pieces (certain images, however, are unlocked only by beating the game on Hard Mode, and are the sole reward for completing this task). The Image Gallery consists of eight sub-galleries, each entirely dedicated to a world of the game, except for the seventh and eighth sub-galleries which house general concepts.

The following table lists every concept artwork found in the game, as well as a description and the condition to unlock it. The color assigned to an image indicates to what extent the idea or ideas depicted in the image was used for the final game: green for ideas used entirely, yellow for ideas used partially, and red for completely unused ideas.

Lost Mangroves
Image	Description	Unlocking criteria
	In the first artwork, it is shown that at least Donkey Kong and Diddy Kong, together with their treehouse, would have been flung on the shore of Lost Mangroves. Landed right by the sea, the Kongs watch as two unknown figures approach them, their shadows projected on the sand. In the final game, the Kongs wind up into a delapidated plane in the treetops, the treehouse having remained on Donkey Kong Island.	Collect all Puzzle Pieces in Mangrove Cove
	Another artwork depicts a mangrove bayou with Donkey Kong in the frontground and several flamingos resting on a mangrove shrub nearby. Ship wreckage appears to be tangled into mangroves. No flamingos appear in the final game, having probably been rejected in favor of birds like Dozies and Sour Dodos.	Collect all Puzzle Pieces in Shipwreck Shore
	The third artwork is a sketch for both a water-coveying trunk and an obstacle. According to a note found beside, the obstacle consists of a broken plane carcass connected with a rope to a big propeller. The Kongs are able to stay on the carcass, but as water falls down on the propeller, it spins and moves the carcass closer to it. The Kongs should "jump before getting sliced". No such contraption appears in the final game, but there are water mills in Canopy Chaos that move giant platforms from side to side, driving them into rotating propellers.	Collect all Puzzle Pieces in Canopy Chaos
	One of the artworks is a slightly different vision of the Lost Mangroves island, although the wreckage motif found around the island was kept in the final version. The island was originally depicted as having a large tree trunk in the middle, with a waterfall coming from it into a lagoon beneath. A group of flamingos can be seen relaxing into the lagoon. On the right side of the island, there is a Mine Cart railtrack weaving through broken planes and wooden logs, heading right onto what appears to be an early Snowmad ship. This ship holds a half-pipe arena, similar to the one found in Big Top Bop, the boss level of Lost Mangroves in the final game. This suggests that the battle against Pompy was going to take place on a ship instead of a circus.	Collect all Puzzle Pieces in Trunk Twister
		Collect all Puzzle Pieces in Zip-Line Shrine
		Collect all Puzzle Pieces in Busted Bayou
Autumn Heights
Image	Description	Unlocking criteria
	One artwork probably shows an early idea for Windmill Hills. It is set in a mountaneous Swiss landscape with a windmill peering from behind a rocky cliff. There are rope cables transporting bales of hay. These would have been used as platforms, as Donkey Kong and Cranky Kong are being ferried by one of them in the picture.	Collect all Puzzle Pieces in Windmill Hills
	Another artwork is a side overview of an autumnal level, possibly a lighter version of Horn Top Hop. Donkey Kong is seen resting on a bed of leaves next to some oval-shaped huts, which do not appear in the final game.	Collect all Puzzle Pieces in Mountain Mania
	An enormous pine tree is shown in the next artwork, decorated with bird houses, candelabrums, globes, and a Brass pipe. This tree was probably meant to be an early Hootz residence or village, and is reminiscent of Mountaintop Tussle, where the battle against Skowl, the Startling, takes place.	Collect all Puzzle Pieces in Horn Top Hop
	In the following artwork, Donkey Kong is shown riding a Mine Cart during a rain, jumping from one log of wood to another, the logs being carried by a water slide. This most probably stands as the concept for Sawmill Thrill.	Collect all Puzzle Pieces in Sawmill Thrill
	A black-and-white artwork shows a wheel with beavers. This is probably an early concept for an obstacle, which never made the cut. Nothing else appears in the artwork. These beavers do not seem to be Gnawties, a beaver species present in other Donkey Kong games.	Collect all Puzzle Pieces in Alpine Incline
	The next artwork depicts a basic representation of Autumn Heights, slightly different from how it appears in the final game. The mountains are entirely surrounded by autumnal woods and two windmills in a corner. At the middle of the mountains, a watermill stands between some pines on a cliff. Beyond a large cloud, two owl visages are carved in the summit, and a Swiss house rises aloft. An airship can be seen next to the cloud, although nothing like that can be seen in the final game.	Collect all Puzzle Pieces in Wing Ding
		Collect all Puzzle Pieces in Crumble Cavern
		Collect all Puzzle Pieces in Rodent Ruckus
Bright Savannah
Image	Description	Unlocking criteria
		Collect all Puzzle Pieces in Grassland Groove
		Collect all Puzzle Pieces in Baobab Bonanza
		Collect all Puzzle Pieces in Frantic Fields
		Collect all Puzzle Pieces in Scorch 'n' Torch
		Collect all Puzzle Pieces in Twilight Terror
		Collect all Puzzle Pieces in Cannon Canyon
		Collect all Puzzle Pieces in Rickety Rafters
		Collect all Puzzle Pieces in Bramble Scramble
Sea Breeze Cove
Image	Description	Unlocking criteria
		Collect all Puzzle Pieces in Deep Keep
		Collect all Puzzle Pieces in High Tide Ride
		Collect all Puzzle Pieces in Amiss Abyss
		Collect all Puzzle Pieces in Irate Eight
		Collect all Puzzle Pieces in Sea Stack Attack
		Collect all Puzzle Pieces in Current Capers
		Collect all Puzzle Pieces in Rockin' Relics
		Collect all Puzzle Pieces in Shoal Atoll
Juicy Jungle
Image	Description	Unlocking criteria
		Collect all Puzzle Pieces in Harvest Hazards
		Collect all Puzzle Pieces in Reckless Ride
		Collect all Puzzle Pieces in Fruity Factory
		Collect all Puzzle Pieces in Panicky Paddles
		Collect all Puzzle Pieces in Jelly Jamboree
		Collect all Puzzle Pieces in Frosty Fruits
		Collect all Puzzle Pieces in Beehive Brawl
		Collect all Puzzle Pieces in Jammin' Jams
Donkey Kong Island
Image	Description	Unlocking criteria
		Collect all Puzzle Pieces in Homecoming Hijinxs
		Collect all Puzzle Pieces in Seashore War
		Collect all Puzzle Pieces in Aqueduct Assault
		Collect all Puzzle Pieces in Blurry Flurry
		Collect all Puzzle Pieces in Forest Folly
		Collect all Puzzle Pieces in Cliffside Slide
		Collect all Puzzle Pieces in Frozen Frenzy
		Collect all Puzzle Pieces in Meltdown Mayhem
		Collect all Puzzle Pieces in Dynamite Dash
		Collect all Puzzle Pieces in Icicle Arsenal
Hidden Kong Temple
Image	Description	Unlocking criteria
		Collect all Puzzle Pieces in Swinger Flinger
		Collect all Puzzle Pieces in Bopopolis
		Collect all Puzzle Pieces in Precarious Pendulums
		Collect all Puzzle Pieces in Spinning Spines
		Collect all Puzzle Pieces in Platform Problems
		Collect all Puzzle Pieces in Slippy Spikes
Secret Seclusion
Image	Description	Unlocking criteria
		Collect all Puzzle Pieces in Levitation Station
		Collect all Puzzle Pieces in Rocket Rails
		Collect all Puzzle Pieces in Crazy Clouds
		Beat the game on Hard Mode
		Beat the game on Hard Mode
		Beat the game on Hard Mode
		Beat the game on Hard Mode
		Beat the game on Hard Mode
		Beat the game on Hard Mode
		Beat the game on Hard Mode

List of Donkey Kong Country: Tropical Freeze pre-release and unused content

Lost Mangroves

• A steamboat model was built to serve as the basis for all mechanical structures present in Lost Mangroves. The steamboat itself is not fully used in the game, but a few instances appear in Trunk Twister.

Sea Breeze Cove

Despite being set in an aquatic world, only a few artworks show the Kongs swimming in water, the rest showing them walking on the shoreline or beside aquarium-like environments. This was probably in anticipation that the game would lack swimming mechanics, like Donkey Kong Country Returns, the predecessor, did.

Juicy Jungle

In most artworks related to Juicy Jungle, many pig characters looking similar to Professor Chops appear to populate the area and work inside the factory. Even though the factory setting of Juicy Jungle was kept, no pigs are seen, and the factory itself is fully automated in the final version.