

On May 25, Namco Bandai's European branch released a press statement announcing that they would be releasing the game throughout Europe under the new name Dragon Ball Z: Attack of the Saiyans. In the February issue of V-Jump, it was announced that the title had been changed from Dragon Ball Z to Dragon Ball Kai to tie-in with the Dragon Ball Kai revision. One of which depicted different looking graphics command icons. Several screenshots were shown in the article. The article stated that the game would be an RPG in development by Monolith Soft that would take start at the 23rd World Martial Arts Tournament and extend into the Saiyan Saga, and it would be released sometime in 2009.

The game was first announced in the December 22, 2008, issue of Weekly Shonen Jump magazine with the title Dragon Ball Z Story: Saiyan Invasion (ドラゴンボールZストーリー サイヤ人来襲, Doragon Bōru Zetto Sutōrī Saiyajin Raishū). It would go on to be the third best selling video game in Japan. The game was met with fair criticism with gaming critics complementing the battle system, its visuals, and its ability to stay true to the series. The game is one of the first games in the Dragon Ball franchise to be published by Namco Bandai in America, as the company would acquire the gaming license from previous license holder Atari in July of that same year. The storyline in Attack of the Saiyans begins with the Z Fighters training for the 23rd World Martial Arts Tournament and ends with the battle against Vegeta (similar to the 1994 Game Boy video game Dragon Ball Z: Goku Hishōden). The game is a turn based RPG that allows players to take on the role of six characters from the series, starting from the Piccolo Jr.
