Dragon Ball Z: Wrath of the Dragon|龙珠Z剧场版13：龙拳爆发!! 悟空舍我其谁

The Z Warriors discover an unopenable music box and are told to open it with the Dragon Balls. The contents turn out to be a warrior named Tapion who had sealed himself inside along with a monster called Hildegarn. Goku must now perfect a new technique to defeat the evil monster.