Extra Heads
Once in the main event you have beaten Takeshi Hangman, the Champ and Alan Kidd,
return to the 'create your own boxer'
mode and highlight the head option. Now scroll off of the list by going either
left or right, and those boxers will be available.
Secret Fighters
If you beat The Champ and then defend your title five times in a row, in each
fighting style, you'll reveal six new titles.
Peek-a-boo
Kiki + Mimi, Edward King.
Detroit
Roboxer beta 1, Carrie the bunny
Open
Jack-in-the-Box, Snake.
Secret boxers
In Open Style, fight until you are champion to access a Jack-In-The-Box
boxer. Defend the championship title five times to access Snake.
Access Kiki and Mimi
In Peek-A-Boo, fight until you are champion to access Kiki and Mimi Defend
the championship title five times to access Edward King (the
promoter).
In Peek-A-Boo, fight until you are champion to access Roboxer. Defend the
championship title five times to access Carrie (the girl that carries the round
cards)
Game Shark Codes
| Infinite Time | 865E5B16 5A4F |
| Infinite Energy | 865B4C3C 54CF |
