Mike Tyson Heavyweight Boxing - Platform: XBox
   
Cheat codes
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Enter the codes at the Press Start screen.
Code          Result 
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Cheat Mode  - X, B, L, R. 
Big Heads   - X, B, Up, Down. 
Small Heads - X, B, Down, Up. 
Flat Mode   - Down, Up, B, X. 

Unlock More Fighters
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Earn the Bronze, Silver & Gold belts to unlock more fighters. 

Unlock the Mike Tyson Challenge
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Beat Tyson and earn the gold belt and you will unlock the 
Mike Tyson Challenge. 

Unlock Iron Mike
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Beat the Mike Tyson Challenge to unlock Iron Mike.