Master code
———–
Press Square, Circle, L2, R2 when „Press Start” appears at the title screen.
All created boxer items
———————–
Press L1, R1, X(2), Triangle, X when „Press Start” appears at the title
screen.
Big heads
———
Press Square, Circle, Up, Down when „Press Start” appears at the title
screen.
Small heads
———–
Press Square, Circle, Down, Up when „Press Start” appears at the title
screen.
Random sized boxers
——————-
Press Square, Left, Up, Triangle when „Press Start” appears at the title
screen.
Flat mode
———
Press Down, Up, Circle, Square when „Press Start” appears at the title
screen.
View full credits
—————–
Press X, Triangle, Square, Circle when „Press Start” appears at the title
screen.
All boxers
———–
Win the Bronze, Silver, and Gold belts.
Mike Tyson Challenge
———————-
Defeat Mike Tyson and win the Gold belt to unlock the undisputed champ
mode. .
Fight as Mike Tyson
——————–
Win the Gold Belt to unlock Mike Tyson in single player mode.
Fight as Iron Mike
——————
Win the Mike Tyson Challenge to unlock Iron Mike, the early version of Mike
Tyson.
