Dragon Ball Z: The Legacy of Goku II is an action role-playing game developed by The Brotherhood and released for the Game Boy Advance on June 17, 2003. The game continues the story from its predecessor, covering the Cell Games Saga. Key features include character transformations, scouter capabilities for tracking stats, charged melee attacks, and collectible capsules for stat enhancements. A modified version, Dragon Ball Z: The Legacy of Goku II International, was released exclusively in Japan on July 23, 2004.
Dragon Ball Z: The Legacy of Goku II was released on June 17, 2003. The plot of the game picks up where The Legacy of Goku left off, and continues until the end of the Cell Games Saga when Gohan defeats the evil android Cell. The game introduced several new concepts to the series. The first was transformations, which allowed characters to become temporarily stronger, at the cost of slowly draining their energy. It also introduced the scouter, which allowed players to look up the stats of other characters in the game, as well as basic information about them. The game also introduced charged melee attacks, which allowed characters to unleash a powerful physical strike after a short charging period. The game also allowed characters to further supplement their stats with capsules that were scattered around the game world. Despite being titled `The Legacy of Goku` this game featured the most limited play as the character Goku.
Due to the game's success, a second version was released titled Dragon Ball Z: The Legacy of Goku II International exclusive to Japan on July 23, 2004. In this version all characters were given new profile images and their names were reverted to their original Japanese. However, Mister Satan still retains his English name `Hercule` on the front of his parade float.
[Source] - Wikipedia.