He was a hired hitman for Cone Head. He mainly was supposed to go after Lego Mario & Fire Mario. He was introduced as kinda stupid, but when it comes to having action he acts tough. He's mostly made of just bones. He has some metal armor that makes him tougher. One point, he managed to bite Fire Mario's arm. Still, he was defeated by his two main targets, and was left on the ground to rot.
It was believed he died, but he actually survived and will continue to work for Cone Head. He has not given up on his job, and has been after every zombie hunter there is. He really doesn't focus on anyone who isn't a zombie hunter. He trapped Mario, Luigi, and Batch Goomba in Lost Caverns. He is starting to become a new leader of the zombies.