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.
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.
At the two player versus mode character selection screen, press Square, then press Square again and the boxing trainer will be selectable. -From: email@example.com
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.
|Infinite Super Punches P1||80052C2C 0001|
|No Super Punches P1||80052C2C 0000|
|Infinite Health & Stamina P1||D00669D4 0000|
|Infinite Super Punches P2||800530DC 0001|
|No Super Punches P2||800530DC 0000|
|Infinite Health & Stamina P2||D00669D4 0000|