Cheats for Mike Tyson Heavyweight Boxing

Press X, B, L, R when "Press Start" appears at the title screen.

Press Down, Up, B, X when "Press Start" appears at the title screen.

Press X, B, Up, Down when "Press Start" appears at the title screen.

Press X, B, Down, Up when "Press Start" appears at the title screen.

Win the Bronze, Silver, and Gold belts.

Defeat Mike Tyson and win the Gold belt to unlock the undisputed champ mode..

Win the Gold Belt to unlock Mike Tyson in single player mode.

Win the Mike Tyson Challenge to unlock Iron Mike, the early version of Mike Tyson.

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