There are 3 unlockable characters for UFC 2009 Undisputed, it’s the crew from the popular MMA clothing line “TAPOUT”. Once unlocked they can be played in Exhibition mode in their specified weight class.
Unlockable Characters
Mask – Get 3 submission wins or tapout wins while in Career mode to unlock Mask in the light heavyweight division.
Punk Ass – While in Career mode get the TAPOUT sponsorship to unlock Punk Ass from lightweight class.
SkyScrape – When at the title screen press Up (3 times), Down, Left, Right, Up, Start. This will unlock SkyScrape from the lightweight division.
Official UFC 2009 Undisputed Website
UFC 2009 Undisputed Wiki