A Snifit resembles a Shy Guy with a black mask. The mask has an extended nozzle that can fire bullets, projectiles or other objects. They first appear in Super Mario Bros. 2. Snifits are rarer than Shy Guys, and usually come in three colors: red, gray, and pink. However, in Worlds 2 and 6 (the desert worlds), the gray Snifits are green. Strangely, there is only one red Snifit in the entire game. In the Super Mario All-Stars version of the game, the pink ones are blue. In Super Mario World 2: Yoshi's Island, all Snifits are garbed in pink.
In Mario Party 2, Snifits patrol Space Land and are members of the Snifit Police force.
The garbage men in the Super Mario Bros. (movie) are probably meant to be Snifits.