Forrest Griffin and Georges St-Pierre are the UFC 2009 Undisputed cover athletes

UFC 2009 Undisputed is an explosive fighting game that will demonstrate the action, intensity and attitude of a UFC live event. Players will explore a deep roster of more than 80 top fighters in UFC competition across all five weight classes. In addition, they will enter the Octagon surrounded by the sport's renowned announcer, commentators, referees, trainers, Octagon Girls and more. Photorealistic models are at the forefront, as players will view amazing ripple effects across the faces and bodies of their fighters from the impact of devastating punches and kicks.

A brand new fighting game engine designed specifically for next generation systems will deliver innovative, responsive and easy-to-play controls that give unparalleled command of fighters, as players take down opponents with a variety of mixed martial arts disciplines, including Muay Thai, Kickboxing and Brazilian Jiu-Jitsu. In addition, the game's Create-a-Fighter system will jumpstart the careers of future champions through character customization, while a robust Career Mode will develop a fighter's attributes and skill sets while fighting to enter the UFC Hall of Fame. Furthermore, players will be able to enhance their UFC 2009 Undisputed gameplay experience through online support, including downloadable content.