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.

Cheats - Effect
R Trigger, White, L Trigger, Black, Down, Up, Left, Up - Fully Equipped (Weapons)
Down, Down, B, Up, X, Y, X, White, Up, Up, L, Y - GOD MODE!
X, X, X, Down, X, Down, B, Up - Invisibility
X, X, White, Down, Y, X, B, Down - Monkey Skin
Up, Down, Left, Left, R Trigger, White, L Trigger, L Trigger - Piggy Skin
Left, R Trigger, R Trigger, Y, R Trigger, R Trigger, X, L Trigger - Rabbit Skin
White, Right, B, White, Black, Down, B, Left - Regenerate (Health refills over time)
White, White, L Trigger, White, Left, Right, Left, Right - Runner (Infinite run meter)
L Trigger, Y, Y, Y, B, B, B, R Trigger - Super Punch (Killer Punches)
R Trigger, L Trigger, White, L Trigger, Right, Left, Left, Left - Silence (Enemies
can't hear you.)
R Trigger, R Trigger, Y, B, X, Black, L Trigger, Down - Hellium Hunters (Enemies
have high pitch voices)