Dragon Ball Final Bout Original Soundtrack JP - 13. Hikari no Will Power 

Far from "one of it's worst." Besides, it's not "stuck" on this game. An instrumental version is heard in Ultimate Battle 22 as Trunks's theme.

@@imfsresidentotaku9699 An instrumental version of Hikari no Will Power is also used for Trunks in this game, but i dont know if its the same instrumental version. i think he called this game one of the worst games because of how the attacks look in this game, but lets not forget its a PS1 game and a lot of characters in Budokai Tenkaichi 2 and 3 have the same attacks.

でも未来トランクスじゃないからねえ　これ未来トランクスのメインテーマだし