Bas Rutten
Win the championship as a heavyweight fighter two times.
Big John Mccarthy
Intentionally lose over fifty matches.
Dan 'the Beast' Severn
Unlock all the viewable unlockable fighters.
Frank Shamrock
Win the championship as a light heavyweight fighter.
Guy Mezger
Win the championship as a light heavyweight fighter two times.
Jens Pulver
Win the championship as a lightweight fighter.
Jeremy Horn
Win the championship as a light heavyweight fighter three times.
Mark Coleman
Win the championship as a heavyweight fighter three times.
Maurice Smith
Win the championship as a heavyweight fighter.
Murilo Bustamante
Win the championship as a middleweight fighter.
Pete Williams
Win the championship as a heavyweight fighter five times.
Tsyoshi Kohsaka
Win the championship as a heavyweight fighter four times.
Kung-fu Style
Successfully complete the Pit Fighter story mode.
Boxing Style
Successfully complete Kung-Fu story mode.
Submission Style
Successfully complete BJJ story mode.
Karate Style
Successfully complete Sumo story mode.
Legend Mode
Win championship mode with any fighter to unlock his legend mode.
Bonus Moves
Win champion mode, tournament mode, legend mode, and progress through arcade mode to unlock an additional move for that fighter.