Big Head Aliens - At the "Press Start" screen, press Square, Circle,
Circle, Square, Up, Square, Circle, Circle, Square, X within three
seconds. If you entered the code correctly, there will be a white screen
flash, sound effect, and display of the cheat name.
Note: This code does not affect the Boss.
Big Head Player - At the "Press Start" screen, press Square, Circle,
Circle, Square, Up, Square, Circle, Circle, Square, Triangle within three
seconds. If you entered the code correctly, there will be a white screen
flash, sound effect, and display of the cheat name.
Goodies Option - At the "Press Start" screen, press Triangle, Square,
Circle, Left, Square, Triangle, Square, Circle, Left, Square within three
seconds. Then, an additional selection will appear at the end of the
options menu that allows level selection, all weapons, infinite
ammunition, and the ability to view the FMV sequences.
Grayscale Graphics - At the "Press Start" screen, press X(2),
Triangle(2), Square(2), Circle(2), Up, Down within three seconds. If you
entered the code correctly, there will be a white screen flash, sound
effect, and display of the cheat name.
Nakomi Mode - At the "Press Start" screen, press Up(2), Down(2), Left,
Right, Left, Right, X, Circle within three seconds. If you entered the
code correctly, there will be a white screen flash, sound effect, and
display of the cheat name. Then, all 3D characters except the Boss will be
flattened.
Sepia Graphics - At the "Press Start" screen, press Left(10) within
three seconds. If you entered the code correctly, there will be a white
screen flash, sound effect, and display of the cheat name.
Stage Select - Enable the "Goodies option" code. Then at the "Press
Start" screen, press Left, Right, X, Triangle, Left, Up within three
seconds. If you entered the code correctly, there will be a white screen
flash, sound effect, and display of the cheat name. Then, an option that
will allow selection of an individual stage within a level will become
available.
Attention: This code might cause music and/or graphics problems.
Turbo Mode - At the "Press Start" screen, press X, Square, Triangle,
Circle, X, Square, Triangle, Circle, L2, R2 within three seconds. If you
entered the code correctly, there will be a white screen flash, sound
effect, and display of the cheat name. Then, press Circle while playing a
game to run faster. Note: This will also use any item currently being held
by your character.Gameshark codes
Infinite Ammo P1 800936b60006
Infinite Lives P1 800936bc0005
Have All Weapons P1 300936810003 300936820003 300936830003
300936840003
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