Rollidillos are enemies that were first introduced into Chrono Trigger, but now are enemies in the Mario Universe.
Rollidillos roll around destroying Brick Blocks as he rolls over them. Rollidillos also have a giant version of themselves that can destroy anything that can break. They also have a cat version of themselves that roll up walls then roll down them at high speeds. Sometimes, a Goomba rides on them to guide them to avoid cliffs.
Rollidillos are reintroduced here. The enemies inhabit mountainous areas and volcanos.