Bombat

Bombats are bat creatures who reside in Poobah the Pharaoh's Pyramid, as well as many other places, in the game Wario: Master of Disguise. They look like a circle with a tail, and mouth. They do not hurt Wario, but if Wario is to harm them in any way, they will move after Wario, and then explode, which causes damage. According to the game, it was born from an unholy union of ancient bitechnology and modern chemical warfare.