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From Wikipedia:
Guilty Gear XX Accent Core (ギルティギア イグゼクス アクセントコア, Giruti Gia Iguzekusu Akusento Koa) is the third version of Guilty Gear X2. In addition to balance changes, Accent Core features a new type of special move, the "Force Break," which uses 25% of the tension gauge.[34] It also introduces moves that make opponents stick briefly to walls or slide across the floor of a stage.[34] New additions also include "Slashback," a form of parrying with reduced block stun, and throw breaks.[34] Both versions of the game feature three gameplay modes per character, based on the Guilty Gear, Guilty Gear X, and Accent Core fighting systems.[35] Accent Core also underwent a major aesthetic change for the series.[34] In addition to a new opening movie,[citation needed] and a redesigned menu,[36] all voices, including that of the announcer, have been re-recorded (or replaced with previously unused samples), sometimes by different actors.[34] The playable character artwork was also redone, and new background songs were added.[36] On the other hand, the Story Mode,[37] as well as Justice and Kliff were removed.[38]
It was first released to Japanese arcades on December 20, 2006.[7] A home console version on PS2 was released on May 31, 2007.[7] A Wii version of this game was released on July 26, 2007,[7] complete with support for the Classic Controller and Nintendo GameCube controller, along with a setup using both the Wii Remote and Nunchuk.[39] Some bugs were reported in the Japanese PS2 version of the game, and Aksys Games announced they would fix them for the American release.[40] Aksys released the PS2 version on September 11, 2007,[41] and the Wii version on October 16, 2007.[42] The publishing rights for the Wii was acquired by 505 Games in October 2007,[43] and released it in Europe on February 29, 2008.[34] 505 Games also published it on Australia for Wii on March 6, 2008.[44]