In the second level of the Pumpkin Zone, after the water and Boos, there are some blocks. If the player is Super Mario, they should destroy only the first block in the first column, by spin jumping. The player must then run back into the pipe. If done correctly, instead of going back to where the Boos are, Mario will then go through the wall, and be back to where the pipe leading to the water is.
The player must begin this glitch by going down a pipe in a level they completed. While Mario is in the pipe, the player must hit the Start button and then press the Select button to exit the level. Mario should then go into any level. If done correctly, Mario should go through the floor as if there was a invisible pipe there. He will fall in either transparent floor, where he cannot go anywhere, or a mess of pseudo-random tiles and sprites used by the game. In the second case, Mario can move around in this mess, but if he hits certain tiles, the following may happen: he may lose a life, the game will freeze, the game will reset and the player will be brought back to the title screen, the ending credits will scroll with the background music of the current level, or the game will act like Mario completed the level. However, the latter effect mentioned will prevent the player from getting the Golden Coin if done on a boss level.
In any level with a bottomless pit, or in any of the water portions of the first level of Macro Zone, if Mario spin-jumps into the pit/water at the bottom of the screen, the "brick break" sound effect will play. Also, the music will continue to play for a few seconds after the death sound.
After hitting the bell at the end of a level, keep pressing the right button to make the game glitch on the crane game, showing the crane game's machine, and a jumbled sprite of Mario at the top of the machine. This will cause the game to crash and then only a white screen will be shown. In order to fix this, you must reset the game.
