Chuckya

Chuckyas are large purple creatures that resemble Bob-ombs and are found in the game Super Mario 64 and Super Mario 64 DS. They move around a small area, and if Mario gets too close, they pick him up and throw him in a random direction. To defeat a Chuckya, Mario must pick the creature up from behind and throw the Chuckya, causing the enemy to explode and release five Coins. They are found in Wet-Dry World, Tall Tall Mountain, Rainbow Ride, Tiny-Huge Island (in the giant area), and Bowser in the Sky. In the remake they have wind-up keys on the back.

Trivia

 * Chuckya's name is derived from the phrase "chuck ya!".