Goku begins his battle against Majin Buu, who demonstrates an ability to copy other people's techniques. Trunks arrives at Capsule Corporation, but he struggles to find where the Dragon Radar is. Bulma realizes that she had left the Dragon Radar in her airplane. She manages to inform Trunks about it. Goku senses Trunks has accomplished his mission. Goku undoes his Super Saiyan 3 transformation once more. He takes his leave after informing Majin Buu that Trunks and Goten will be ready to fight him in two days. Shortly after Goku leaves, Majin Buu decides he has no further use for Babidi. Wanting to be free of Babidi's control, Majin Buu turns against him and kills Babidi.