Dragon Ball Z: The World's Strongest

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.

Cooler has resurrected himself as a robot and is enslaving the people of New Namek. Goku and the gang must help.

The Saiyajin named Turlus has come to Earth in order to plant a tree that will both destroy the planet and give him infinite strength. Son Goku and the Z Warriors cannot let this happen and duke it out with the invaders for the sake of the planet.

After defeating Freeza, Goku returns to Earth and goes on a camping trip with Gohan and Krillin. Everything is normal until Cooler - Freeza's brother - sends three henchmen after Goku. A long fight ensues between our heroes and Cooler, in which he transforms into the fourth stage of his evolution and has the edge in the fight...until Goku transforms into Super Saiyan.