Goten and Trunks begin their fusion training, but it is soon interrupted by Babidi. He announces that he has learned where Trunks lives, and he and Buu are now on their way to kill him. Goku sends Trunks to get the Dragon Radar from Capsule Corporation before it is destroyed, and he himself heads off to slow down Buu and Babidi. He asks Buu why he takes orders from someone as weak as Babidi. Though Buu seems intrigued by the thought of killing his master, he dislikes Goku as much as he does Babidi, so he decides to attack Goku. Goku knows that an ascended Super Saiyan isn't enough to stop Buu, so he says he'll take it up to the next level.