The new Boo proceeds to destroy the Earth, killing Gohan, Goten, Trunks and Piccolo. However, Goku and Vegeta are able to escape to Kaiō-shin's planet along with Dende and Mr. Satan. Goku prepares to face the new Boo, who regenerates and teleports to the Kaiō-shin planet. However, Goku is unable to control his powers, and Vegeta and the obese Boo distract the current Boo to buy Goku time to recover. Vegeta tells Dende to use Porunga to restore the Earth and revive all of its inhabitants, which will allow Goku to absorb their energies to perform the Super Genki-Dama. With help from the obese Boo and Mr. Satan, Goku is able to prepare the Super Genki-Dama and uses it to kill Boo once and for all. Goku then returns to live with his family and friends and 10 years later, he enters himself into the 28th Tenka'ichi Budōkai. There, he confronts Boo's reincarnation, a young boy named Oob. Goku, impressed by Oob's power, decides to train him so that he will one day become Goku's replacement as the protector of Earth.