In Treehouse of Horror XXVI, Sideshow Bob kills Bart with a spear gun, then discovers that the only thing that has made him happy was hunting down Bart for 24 years, so he builds a machine to bring Bart back to life so he can kill him over and over. The Simpson family finds Bart ...In Treehouse of Horror XXVI, Sideshow Bob kills Bart with a spear gun, then discovers that the only thing that has made him happy was hunting down Bart for 24 years, so he builds a machine to bring Bart back to life so he can kill him over and over. The Simpson family finds Bart and reanimates him, then Homer rips off Bob's head.
Bart takes Sideshow Bob's head, then puts it in Bob's machine with a horn, frog legs, a chicken body, a tail and a booger to make a bizarre-looking creature.