Darth Vader
Set level to Standard or Jedi. Play through Arcade Mode with Luke Skywalker.
Stormtrooper
Set level to Standard or Jedi. Play through Arcade Mode with Han Solo.
Mara Jade
Set level to Jedi. Press and hold R1, L1, L2 at the game select screen. Select Team Mode using X while holding the above buttons. The computer will pick the team. Win the matches and Mara Jade will be released.
Jodo Kast
Play Survivor Mode as any character while playing Jedi difficulty level. Win at least 7 matches and Jodo Kast will be released.
Slave Leia
Play Arcade Mode in Jedi level using Leia. Beat the game and Slave Leia will be released.
Level Select
Beat Arcade Mode as Chewbacca. You will be able to choose any level in Vs Mode.
Big Head
Hold the Select button during loading.
Tiny Mode
Hold Select, Down, X, and R2 during loading.
Unlock fighting room choice
Just beat the game on hard with Chewbacca - it will tell you the message if done right
Control Credits
During the credits, press Up or Down to change speed or direction of the credits.
Full Screen
At the loading screen, hold Select + R2 + L1.
Vs Mode Kid Mode
on vs. mode to be a little kid, hold Down, Select, X, and R2 at the loading screen until the match starts
Big Body Mode
Hold Down, Select, X until the match starts
Alternate Costumes
Press L1 at the character selection screen.Level Select:Complete the game as Chewbacca on Jedi level to enable level selection under versus mode.