Hidden boxers in exhibition mode
 
 Win the World Championship and save the game. Then at the exhibition
 mode character selection screen, press Square, then press Square
 again and Jackel, Goober, Rascal, and Beastman will be selectable.
 
 Main Event boxers in versus mode
 
 Create a new boxer in "Main Event" mode, select, then immediately
 save a boxer to a memory card. Repeat this process to save a second
 Main Event boxer to the memory card. Then, begin a match in two
 player versus mode. Now at the character selection screen, press
 Square to choose one of the previously saved Main Event boxers.
 
 Boxing trainer in versus mode
 
 At the two player versus mode character selection screen, press
 Square, then press Square again and the boxing trainer will be
 selectable. -From: lil_crazy380@hotmail.com
 
 Custom newspaper photo
 
 Note: This trick requires a dual analog controller. Begin a match in
 main event mode. Press L3 or R3 to take a snapshot of the current
 scene. The photo that was snapped will appear in the newspaper at the
 end of the bout. 
 
  Game Shark Codez:
 
                 
  Infinite Super Punches P1    
  80052C2C 0001
                 
  No Super Punches P1          
  80052C2C 0000
                 
  Infinite Health & Stamina P1 
  D00669D4 0000
  800669D4 0050
  D00669D6 0000
  800669D6 3241
  D0066A1C 0000
  80066A1C 000E
  D0066A1E 0000
  80066A1E 1420
                 
  Infinite Super Punches P2    
  800530DC 0001
                 
  No Super Punches P2          
  800530DC 0000
                 
  Infinite Health & Stamina P2 
  D00669D4 0000
  800669D4 0050
  D00669D6 0000
  800669D6 3241
  D0066A1C 0000
  80066A1C 000E
  D0066A1E 0000
  80066A1E 1020