Doragon bôru Z 13: Ryûken bakuhatsu!! Gokû ga yaraneba dare ga yaru 1995

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.

Cast:

Masako Nozawa
Son Gokû / Son Gohan / Son Goten / Gotenks (voice) 

Takeshi Kusao
Trunks / Gotenks (voice) 

Mayumi Tanaka
Kuririn / Minoshia (voice) 

Hiromi Tsuru
Bulma (voice) 

Masaharu Satô
Kame Sennin / Shenlong (voice) 

Yuko Minaguchi
Videl (voice)