Majin Buu
Majin Buu is one of the most powerful enemies the Z fighters will have to face. Buu comes late in the GT series sometime after the Cell game. He can also change his physical appearance. He is either fat, small and skinny, or tall and skinny. The evil Buu is created out of the fat Buu who is his good side. He has pores on his body with which he absorbs his opponents to make him stronger. In all he absorbs three of the Z fighters plus fat Buu. Gotenks, Gohan, and Piccolo are the unfortunate three. He killed Chi-Chi by turning her into and egg and then stepping on her. He then blew up Earth but Goku transported them all to King Kai's planet to finish their battle. King Kai dies at his hands also. Buu was defeated after Vegetto gets absorbed by him to save their friends but when a fusion is absorbed, they retun to their natural forms. So then Goku and Vegeta wander around inside Buu and get Goten, Trunks, Gohan, Piccolo, and fat Buu then escape through his mouth. Vegeta then stalls Buu while Goku charges for a spirit bomb which will kill him.