Big Head Aliens
Press Square, Circle, Circle, Square, Up, Square, Circle, Circle, Square, X under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Big Head Player
Press Square, Circle, Circle, Square, Up, Square, Circle, Circle, Square, Triangle under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Extra Options
Press Triangle, Square, Circle, Left, Square, Triangle, Square, Circle, Left, Square under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Grayscale Graphics
Press X, X, Triangle, Triangle, Square, Suqare, Circle, Circle, Up Down under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Nakomi Mode
Press Up, Up, Down, Down, Left, Right, Left, Right, X Circle under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Sepia Graphics
Press Left ten times under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Stage Select
Preform the "Extra Options" code then Press Left, Riught, X, Triangle, Left, Up, under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
Turbo Mode
Press X, Square, Triangle, Circle, X, Square, Triangle, Circle, L2, R2 under 3 seconds at the "Press Start" screen. If done correctly, the screen should flash whtie with a sound effect and followed by the name of the cheat.
