Lemmy next appears in Super Mario World, aiding in Bowser's invasion of Dinosaur Land. He takes hold in his castle, found within the Vanilla Dome; Lemmy's is the third castle on the map. Inside, he guards one of the Yoshis trapped inside an enchanted Yoshi's Egg.In battle, Lemmy pops out of Warp Pipes to attack, along with two Lemmy decoys; he sometimes pops out sideways or bottom-first. Lemmy and the decoys need to be avoided except for stomping; a diagonal Lava Bubble needs to be avoided, as well. After getting stomped three times, Lemmy is defeated and forced out of a Warp Pipe into the lava below (with a shriek in the GBA version).After being defeated, Mario smashes Lemmy's castle to bits with a hammer.