Dragon Ball Z: Atsumare! Gokuu World

A special time machine gives Goku and his friends a chance to travel through memories of their own adventures. Familiar enemies and famous battles from the past appear again as the group jumps from one era to another, turning history into a playful test of how well everyone remembers what really happened.

The trip eventually carries them into the era of Cell, where looking back stops feeling quite so harmless. Even with the fate of the world involved, Goku's reunion with the past keeps the same mixture of fighting spirit, rivalry, and cheerful chaos that has always followed him.