The Mutant Corpses powerup, known as Vesuvian Corpses in Carmageddon, is a simple powerup that is merely for effect; it doesn't affect gameplay. This powerup makes all corpses spasm as if they were alive. While they spasm, small spurts of blood jump off. In Carmageddon, they don't spasm, but rather, just spit blood every 3 or so seconds. Even though this powerup is called "Vesuvian Corpses" in Carmageddon, it's still the same powerup, as evidenced by the effects and the same action index in both games.