All default boxers and arenas
 
 At the main menu, hold R and press Right, Down, Up, Left, Up, L. 
 Note: This does not unlock Mickey or the Rocky Statue.
 
 
 
 All default boxers, arenas, and Rocky Statue
 
 At the main menu, hold R and press Right(3), Left, Right, L.
 
 
 All default boxers, arenas, Rocky Statue, and Mickey
 
 At the main menu, hold R and press Up, Down(2), Left(2), L.
 
 
 Double punch damage
 
 At the main menu, hold R and press Right, Down, Left, Up, Left, 
 L.
 
 
 
 Double speed boxing
 
 At the main menu, hold R and press Down, Left, Down, Up, Right, 
 L.
 
 
 
 Full stats in tournament and exhibition modes
 
 At the main menu, hold R and press Left, Up(2), Down, Right, L.
 
 
 
 
 Full stats in movie mode
 
 At the main menu, hold R and press Right, Down(2), Up, Left, L.
 
 
 
 
 Win fight in movie mode
 
 At the main menu, hold R and press Right(2), Left(2), Up, L. Press 
 Black + White during a fight in movie mode to automatically win.
 
 
 
 
 Silver Class Tournament
 
 Successfully complete the Bronze version of the Knockout Tournament 
 to unlock Silver Class Tournament.
 
 
 
 Gold Class Tournament
 
 Successfully complete the Silver version of the Knockout Tournament 
 to unlock the Gold Class Tournament.
 
 
 
 Mickey Goldmill
 
 Successfully complete movie mode on the champ difficulty setting 
 to unlock the Mickey Goldmill.
 
 
 
 Rocky Statue
 
 Successfully complete movie mode on the contender difficulty setting 
 to unlock the Rocky Statue.