The Kamehameha is Goku's signature energy attack from Dragon Ball, the manga and anime series created by Akira Toriyama, where it was taught to him by Master Roshi and became his most famous move. As Dragon Ball grew into a global franchise through anime, video games and merchandise, the charging cry and blast sound became shorthand for anime power-ups in general. Today creators reuse it far beyond Dragon Ball itself, because almost everyone recognises the build-up and release even without seeing the show.