Enter any of the following at the cheat menu.

Quantum Lament Distorted Doting - Time Factor
Want This Dark Reality Taint Qweef - Unlocks EVERYTHING
Ugly Dark Heated Orange Quaff - Unlimited Ammo
Terminal Reality Super Uber XXX Vacate - Unlimited Health
Pimp Reap Dark Dark Muse - Unlimited Rage
Bone This Curry Vote - Unlock All Combos
Whiskey Fake Kablow Shoot - Unlock All Guns
Anomalies Are Juan Insulated - Unlock All Levels
Pension Reap Super Vulgar - Unlock All Movies
Ardent Hungry Naked Ninja - Unlock All Slideshows
Whack Licker Otic Cunningly - Unlock Outfits
Cargo Fire Imp Kak - Credit Carnage Points
Late Nurture Qweef Super - Credit Gun Experience
Blank Ugly Pustule Eater - Enable All Powers
Naked Juggy Resistance Pacy - Fill BloodLust Cheat Unlocked
Blue Green Purple Imp - Freeze Enemies
Uber Taint Joad Durf Kwis - God Mode
Dodge This Moist Pimp - Gratuitous Dismemberment
Fake Burst Cunningly Distorted - Juggy Mode
This Dark Distorted Reality - Overload Mode
Whack This Molested Ninja - Refill Ammo Cheat Unlocked
Nurture Happy Pustule Erasure - Restore Health Cheat Unlocked