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Boo Unbound! (見え始めた魔人ブウの真価, Mie Hajimeta Majin Bū no Shinka; lit. "Demon Man Boo Begins to See His True Worth") is the four hundred seventy-fifth chapter of the Dragon Ball manga.
The intense battle between Goku and Majin Buu rages on. The powerful Majin proves a worthy adversary for even Goku. Goku eventually ends the battle, and tells Buu that he will have a strong opponent soon. After Goku departs, Majin Buu kills Babidi. Back on Kami's Lookout, Goku explains to Piccolo that the Super Saiyan 3 form is only supposed to be used in the Other World and he used too much energy for this world of time while fighting Buu in this state. Piccolo tells him to get Dende to restore his energy, but Goku replies that Dende can not restore the lifetime shortened by using the form and he must soon to return to the afterlife.