Mike Tyson Heavyweight Boxing Cheats

Unlock master code:
At the title screen (when the press start prompt appears), push Square, Circle, L2, R2 when PRESS START appears at the title screen.
 

Unlock all created boxer items:
At the title screen (when the press start prompt appears), push L1, R1, X(2), Triangle, X when PRESS START appears at the title screen.
User Cheat by BHopkins  

Unlock big heads:
At the title screen (when the press start prompt appears), push Square, Circle, Up, Down when PRESS START appears at the title screen.
User Cheat by BHopkins  

Unlock small heads:
At the title screen (when the press start prompt appears), push Square, Circle, Down, Up when PRESS START appears at the title screen.
 

Unlock Random sized boxers:
At the title screen (when the press start prompt appears), push Square, Left, Up, Triangle when PRESS START appears at the title screen.
 

Unlock f lat mode:
At the title screen (when the press start prompt appears), push Down, Up, Circle, Square when PRESS START appears at the title screen.
 

Unlock v iew full credits:
At the title screen (when the press start prompt appears), push X, Triangle, Square, Circle when PRESS START appears at the title screen.
 

Unlock a ll boxers:
By winning the Bronze, Silver, and Gold belts.
 

Unlock Mike Tyson Challenge:
Beat Mike Tyson and win the Gold belt to unlock the undisputed champ mode..
 

Unlock Mike Tyson:
By winning the Gold Belt to unlock Mike Tyson in single player mode.
 

Unlock Iron Mike:
By winning the Mike Tyson Challenge to unlock Iron Mike, the early version of Mike Tyson.

 

Mike Tyson Heavyweight Boxing Code Breaker Codes

Mike Tyson Heavyweight Boxing GameShark V2 Codes (NA)

Mike Tyson Heavyweight Boxing Pro Action Replay Codes (NA)