Sluggy

Sluggies are hairy slug-like enemies found in Super Mario World 2: Yoshi's Island. They come in three colors: green, red, and blue. Sluggies can fall on Yoshi from the ceilings. However after falling they don't bother Yoshi or the baby at all. If the player walks back through the same area it will fall from the ceiling again as if it had never fallen the first time. Sluggy the Unshaven is the boss form of a Sluggy. The only place they appear in is Sluggy the Unshaven's fort.

Trivia

 * they resemble shy guys without any clothes