UFC: Sudden Impact Play as Bas Rutten
Win the championship with a heavyweight fighter two times to unlock Bas Rutten.
Play as Frank Shamrock
Win the championship with a light heavyweight fighter to unlock Frank Shamrock.
Play as Guy Mezger
Win the championship with a light heavyweight fighter two times to unlock Guy Mezger.
Play as Jens Pulver
Win the championship with a lightweight fighter to unlock Jens Pulver.
Play as Jeremy Horn
Win the championship with a light heavyweight fighter three times to unlock Jeremy Horn.
Play as Mark Coleman
Win the championship with a heavyweight fighter three times to unlock Mark Coleman.
Play as Maurice Smith
Win the championship with a heavyweight fighter to unlock Maurice Smith.
Play as Murilo Bustamante
Win the championship with a middleweight fighter to unlock Murilo Bustamante.
Play as Pete Williams
Win the championship with a heavyweight fighter five times to unlock Pete Williams.
Play as Tsyoshi Kohsaka
Win the championship with a heavyweight fighter four times to unlock Tsyoshi Kohsaka.
Kung-Fu style
Successfully complete the Pit Fighter story mode to unlock the Kung-Fu style.
Boxing style
Successfully complete Kung-Fu story mode to unlock the Boxing style.
Submission style
Successfully complete BJJ story mode to unlock the Submission style.
Karate style
Successfully complete Sumo story mode to unlock the Karate style.
Legend mode
Win the championship with any fighter to unlock his Legend mode and move.