Cheat mode
Pause the game and quickly press R, Black, Y, Black, L, White to unlock everything in the game. If you entered the code correctly, you will hear the sound of an explosion.

Infinite health
Pause the game and quickly press Black, White, L, X, L, White. If you entered the code correctly, you will hear the sound of an explosion.

X-Ray graphics
Pause the game and quickly press L(2), R, L, Y, X, White, Black(2), White. If you entered the code correctly, you will hear the sound of an explosion.

Freeze graphics
Pause the game and quickly press R, L, Black, White, L, Y(2), Black, R, White. If you entered the code correctly, you will hear the sound of an explosion.