Gundam Battle Royale is a game released for the PlayStation Portable. The game was released only in Japan and South Korea on October 5, 2006. The game features many mobile suits and mobile armors from the Universal Century up to and including Zeta Gundam. It is the sequel to Gundam Battle Tactics. A sequel called Gundam Battle Chronicles has been released on 25 October 2007.
Gundam Battle Chronicle is the sequel to Gundam Battle Royale and Gundam Battles series. It features over 140 Mobile units including the 80 units in Gundam Battle Royale and improved the multi-player gaming system so that the single-player missions could be played in multi-player's mission mode. New additional missions are from Stardust Memory, and MSs from Gundam ZZ, Gundam Sentinel, and Char's Counterattack.
The fourth sequel of Gundam Battle series was released on July 17, 2008 in Japan. It features over 200 MS units (including F91 in Mobile Suit Gundam F91 and Ξ Gundam in Mobile Suit Gundam: Hathaway's Flash) can be selected; two UC stories (Mobile Suit Gundam ZZ and Mobile Suit Gundam: Char's Counterattack) become as a part of the campaign. On the other hand, every characters have 2 personal abilities (passive which is activated for all times and additional which is activated when player's HP gauge is at 30%). This game can inherit the Gundam Battle Chronicle's save data. The game also let players use the adhoc function to help each other in the normal campaign mode, unlike the previous games, which multiplayer mode is only available in the main menu.