The Fusion Dance - With Babidi gone, Buu amuses himself by playing with and terrorizing people. Gohan gets better with the sword. Because transforming to S.S. 3 drained his energy, Goku can only stay on earth 30 more minutes. He uses his precious time to train Goten and Trunks the Fusion Pose. Goku's Time Is Up - Goku teaches the Fusion Pose, but Goten and Trunks get bored and persuade him to show them S.S. 3, even though the power loss will take him back to the dead immediately. He says his farewells. Buu builds a house out of people. Return to Other World - Piccolo teaches Goten and Trunks where Goku left off, but the boys are unruly. Goku returns to the dead and finds Goku with Supreme Kai. Buu has now wiped out 2/3 of the earth's population.