Mike Tyson Heavyweight Boxing - Cheat mode

Cheat mode

At the "Press Start" screen, press X, B, L, R to unlock all boxers, arenas, and game modes.

Big head mode

At the "Press Start" screen, press X, B, Up, Down.

Small head mode

At the "Press Start" screen, press X, B, Down, Up.

Flat mode

At the "Press Start" screen, press Down, Up, B, X.

All boxers

Win the Bronze, Silver, and Gold belts to unlock all boxers including Mike Tyson.

Mike Tyson challenge

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

Play as Iron Mike

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