THQ has released a trailer which unveils all the names involved in the upcoming MMA fighting game, UFC Undisputed 2010. Check out the video after the break. The demo is also available as of today.

Bruce Buffer belts out each individual’s name of the over 100 fighters who are involved with the game.

The demo is available on both PSN and Xbox Live as of today. To get a code you must register on the UFC Undisputed 2010 community web-site at community.ufcundisputed.com. By joining the community, members will receive a code redeemable on either PSN or Xbox Live.

The playable UFC Undisputed 2010 demo allows players to jump right into Exhibition Mode or challenge friends offline with Tournament Mode, and features four Light Heavyweight Fighters – Mauricio “Shogun” Rua, Lyoto “The Dragon” Machida, Rashad “Sugar” Evans and Quinton “Rampage” Jackson.

UFC Undisputed 2010 is scheduled to be released May 25 in the US, and May 28 in the EU.