God mode:
Successfully complete the game under the Fetish difficulty setting, then press Down (2), B, Up, X, Y, X, White, Up(2), L, Y at the title screen. The message "God Mode" will appear at the bottom of the screen to confirm correct code entry. Note: The game cannot normally be saved while this code is enabled.

Use the following trick to save the game while in God mode. Enable the God mode code, then finish a few levels with a three star rank or higher until you get a bonus level (Hard as Nails, Brawl, etc.). Then, play one of the bonus levels, die, and quit. This will reset the codes you enabled. Next, play any easy level and save at one of the check points. You will keep all the stars that you have earned with the cheat codes.

Cheat mode:
The following codes have no effect until you complete the both levels with at a five star rank under the hardcore difficulty setting to unlock them. Each code has two parts, each of which are unlocked by a specific level (for example, at the end of level 1 and level 2 with at least a three star rank). When this is done, one half of a code will appear at the bottom of the image that is now unlocked in the "Bonus Features" menu. Once both halves (images) are unlocked, that specific code can now be activated in any level in the game.

Helium Hunters:
Press R(2), Y, B, X, Black, L, Down at the main menu. Complete the Strapped for Cash and View Of Innocence levels to unlock this code. Enemies will have high pitched voices.

Invisibility:
Press X(3), Down, X, Down, B, Up at the main menu. Complete the Trained To Kill and Border Patrol levels to unlock this code.

Fully Equipped:
Press R, White, L, Black, Down, Up, Left, Up at the main menu. Complete the Drunk Driving and Graveyard Shift levels to unlock this code. You will have all weapons.

Monkey Skin:
Press X(2), White, Down, Y, X, B, Down at the main menu. Complete the Press Coverage and Wrong Side Of The Tracks levels to unlock this code.

Piggsy Skin:
Press Up, Down, Left(2), R, White, L(2) at the main menu. Complete the Key Personnel and Deliverance levels to unlock this code.

Rabbit Skin:
Press Left, R(2), Y, R(2), X, L at the main menu. Complete the Kill The Rabbit and Divided They Fall levels to unlock this code.

Regenerate:
Press White, Right, B, White, Black, Down, B, Left at the main menu. Complete the Fueled By Hate and Grounds For Assault levels to unlock this code.

Runner:
Press White(2), L, White, Left, Right, Left, Right at the main menu. Complete the Born Again and Doorway Into Hell levels to unlock this code. This code allows unlimited sprint.

Silence:
Press R, L, White, L, Right, Left(3) at the main menu. Complete the Road To Ruin and White Trash levels to unlock this code. Enemies will no longer be able to hear you.

Super Punch:
Press L, Y(3), B(3), R at the main menu. Complete the Mouth Of Madness and Doing Time levels to unlock this code.