Fat Buu was created by Babidi. Under Babidi's command, Fat Buu destroyed many towns. He also made friends with Mr. Satan. Fat Buu is very fun loving, but there are still some evil genes inside him that makes him a really destructive enemy.

Fat Buu raged with anger after his favourite dog was shot. Through that incident, huge smoke were shot out from his head pores which slowly evolved into Super Buu. Super Buu contains all the evil genes of Fat Buu and that makes him a merciless killing machine.

Super Buu changed Fat Buu into a chocalate candy. After eating Fat Buu, Super Buu managed to change into a pink, evil looking character. Super Buu's power has increased tremendously. Even Gotenks had a hard time handling this version of Buu. Super Buu also kills many without mercy at all.

Super Buu used his body liquid to suck Saiyans like Gohan and Gotenks into his body. With that, he gained Gohan and Gotenk's abilitie making him very hard to defeat. Vegetto was also taken into Buu's body but fortunately, they weren't taken into Buu's body system because his body can't take in anymore people.

Gokou and Vegetta were both splitted into their original selfs after entering Buu's body. They discovered everyone who was sucked into Buu's body. After taking all of them out, Buu morphed into thin Buu. This version of Buu is surprisingly, more stronger than all the previous versions making him the hardest enemy in Dragonball Z.