Poop

From the Super Mario Wiki

Poop or Feces is animal excrement that first appeared in the WarioWare series. In the North American version of the games, most poop was replaced with something else. For example, a mini-game in WarioWare, Inc.: Mega Microgame$! has Wario trying to catch fruit and diamonds in the United States; in Japan, the diamonds were actually poop. One small exception to Nintendo's removal of poop can be found in WarioWare: Twisted!, where Wario had to dodge a bird poop in a minigame present unabridged in both versions of the game. In WarioWare: Touched!, in Wario-Man's boss stage, Wario will go through a human nose, and will go to the end, open a treasure chest, to discover poop. Poop was also in a micro-game in WarioWare: Smooth Moves where players have to get rid of poop, and again when the player had to scare people away with poop on a stick.

In Wario: Master of Disguise, when one of Arty Wario's drawings come out wrong, the drawing will turn into a piece of poop with eyes and legs and then run away from Wario. When it crashes into something it will disappear. However, if it crashes into Warp Doors or Blocks, the poop will destroy the Warp Door and Block. Also, if poop touched an enemy, the poop will immediatly destroy the enemy. This is also helpful in a boss fight Wario has later in the game. A mini-game, called Trash It also has the player putting many objects to the place where they belong (for example, a Baseball with a Baseball Glove). One of the objects is poop, and the player, using the Stylus, must guide it to a toilet.