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.
(Source: ANN)
Characters & Voice Actors

Hildegarn
Main
Aomori, Shin
Japanese
Son, Gokuu
Main
Nozawa, Masako
Japanese
Tapion
Main
Yuuki, Hiro
Japanese
Trunks
Main
Kusao, Takeshi
Japanese
Bulma
Supporting
Tsuru, Hiromi
Japanese
Gotenks
Supporting
Nozawa, Masako
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