Win the Bronze, Silver, and Gold belts.
Press X, B, Up, Down when "Press Start" appears at the title screen.
Win the Mike Tyson Challenge to unlock Iron Mike, the early version of Mike Tyson.
Win the Gold Belt to unlock Mike Tyson in single player mode.
Press Down, Up, B, X when "Press Start" appears at the title screen.
Defeat Mike Tyson and win the Gold belt to unlock the undisputed champ mode..
Press X, B, L, R when "Press Start" appears at the title screen.
Press X, B, Down, Up when "Press Start" appears at the title screen.
More Cheats, Tips, Secrets & Walkthroughs
