Dragon Ball Z: Series 15 (2008)

After learning that he is from another planet, a warrior named Goku and his friends are prompted to defend it from an onslaught of extraterrestrial enemies...When Mr. Satan inspires Majin Buu to give up his evil ways, it seems the professional pretender has really saved the world. But when a deranged madman suddenly spoils Buu's good mood, the pink terror goes on another rampage...Goku and Vegeta reunite the others only to be attacked by Majin Buu! The showdown proves that fighting Buu inside his own head is a mind-bending experience. Can Goku and Vegeta survive in this twisted house of horrors where all is Buu?...