THQ will release the UFC Undisputed 2010 demo this Thursday on PlayStation Network and Xbox Live Arcade.
Registered users of the UFC blog will be given first dibs and supplied with a free download code. Just register and make sure your state and country fields are filled in on your profile. THQ will send the codes automatically to those who qualify on Thursday.
There's no word on when a demo will go on general release.
The demo offers four fighters - Mauricio "Shogun" Rua, Lyoto "The Dragon" Machida, "Sugar" Rashad Evans and Quinton "Rampage" Jackson - and allows Exhibition mode and offline Tournament mode to be played.
UFC Undisputed 2010 is due out in full on 28th May.