X-Men Origins: Wolverine Cheats

Lunge (10): Lunged to 25 enemies
Mutant Lover (15): Raised one Mutagen to level 3
Perfect Killer (20): Quick Killed 3 enemies in a row
Piggy Back Ride (10): Lunged to a W.E.N.D.I.G.0 prototype's back
Pounce (15): Lunged to 100 enemies
Quick Killer (10): Quick Killed 1 enemy
Samurai (25): Raised All Combat Reflexes to Master Level
Shotgun Epic Fail (15): Killed 25 Ghosts with their own weapon
Slaughter House (15): Dismembered 100 enemies
Slice n' Dice (15): Killed 6 enemies with a single attack
Spillway Escape (30): Escapes from Weapon X
Stick Around (10): Impale Victor Creed outside the Bar
The Cake (15): You found the cake, yummy!
Threading the Needle (15): Flew through the 0 ring in the Sentinel Boss Battle
Ultimate Wolverine (15): Fought 4 W.E.N.D.I.G.0 prototypes at the same time and defeated them at Alkali lake
Untouchable (20): Performed 25 Counter moves
Walking Death (50): Beat the game on Hard Difficulty
Weapon X (25): Killed 150 enemies while in Berserker mode
What I Do Best (30): Killed 2000 enemies
Whatever it Takes (20): Killed 30 enemies using objects in the environment
WoW! (15): You feel cold as you examine the skeleton and read the name "Arthas" etched into the nearby sword
You Can't Hide (20): Lunged to 250 enemies


Hard difficulty
Beat the game.

New Costumes
Collecting the action figures throughout the game earns you challenges where you face a Wolverine in a different costume. Beat the challenge to unlock that particular costume.

Blue/Yellow Wolverine: Classic Wolverine Challenge complete
Brown/Yellow Wolverine: Legendary Wolverine Challenge complete
X-Force Costume: X-Foce Wolverine Challenge complete

The Cake trophy (from Portal)
In Chapter 3, the part where you have to freeze yourself to get to the mark prototype, instead of moving the teleporter to the left, move it all the way to the right through a small hole and teleport there. You will see the cake from Portal. There is also a mutagen in this room.

WoW! trophy
In chapter 2, the 'What I Do Isn't Very Nice' checkpoint, there is a part where Agent Zero talks to you through a transmitter. At this part, you will cross a log over a gap, then climb up a small edge. Here, if you look to the right, there will be a log that leads up into a cave where the sword from World of Warcraft, Frostbourne resides. Wait there for a few seconds and the trophy will be unlocked.

Lost Hatch Achievement/Easter Egg
Somewhere in the middle of the first level of the game is a boarded up doorway that's not too hard to see off the main path. Claw through it and you'll find a hidden area with a powerup and what seems to be the hatch from Lost. Stand on top of it for a few seconds to unlock the Found! achievement.

Unlock Achievements
Simply enter whatever cheat you wish to use, then quit to the main menu. Select Continue or Replay Mission...