Unlock everything
Go to the title screen and press X, L, X, L, X, X, L, R. 
Repeat several time to get everything unlocked.

Master code:
Press X, L, X, L, X(2), L, R, X, L, X, L, X(2), L, R at the main menu. 

Press X(2), L(4), X(2), L at the title screen. 
Pause game play to access the "Cheats" option. 

Level select and all challenges:
Press X, L, X, L, X, L(2), R at the main menu.


All costumes:
Press X, L, X, L, X(2), L, R at the main menu.


All Cerebro files and FMV sequences:
Press X, L, X, L, X(2), R, L at the main menu.


Cheats option:
Press X(2), L(4), X(2), L at the main menu. 
Pause game play to access the "Cheats" option. 

Hint: Defeating Juggernaut:
When the battle begins, you are in a force field arena. Try not to hit the force field, 
or you will get hurt. Enemies from outside the force field will be throwing green 
gas grenades at you. If you get dizzy from the green gas, rotate the Left Analog-
stick to regain control of Wolverine. Juggernaut has a special move where he 
creates shockwaves by slamming his hands together. Try to get as far away from 
him when he does this to avoid getting hurt. Juggernaut is invincible while running; 
make him run into the the force field "corners". The best way to do this is to stand 
at one of the "corners" opposite from where Juggernaut is standing. When you 
make Juggernaut hit one of the "corners", he will get shocked, get thrown into the 
middle of the arena, and will become dizzy. Run up to him and hit him a few times. 
When you see the "Strike" message, strike him to make him lose health. Do this at 
least three or four times. After you strike Juggernaut several times, you will see 
Colloso jump over the force field fence. Run up to him and press Strike to make 
him throw Wolverine at Juggernaut to defeat him. 


In the first part, lure him into the actual poles of the fence. When he flies away 
and lands dazed, attack him from side and watch for the "Strike" message to 
appear. Later when he starts jumping, jump to avoid the shockwave and try to get 
him to jump into the electric beams. He is weak after he jumps. He will stand and 
send a series of shockwaves. Also jump over these. If he is on one side of 
the "ring", run to the other side to avoid them. Watch out for the gas. When his 
health is gone, you must to finish him with a strike. Note: Beware of gas and watch 
your bar for your sickness level.


Hint: Defeating Lady Deathstrike:
Start by fighting as if in a normal battle. Then, climb up the ladder when she 
cannot move. Next, blow up the four generators. You do not fight her here. Then, 
rip open the gate and jump down. It gets difficult at this point. Run around until 
you find the key. Then, go up to her, but not too close. Kick her; do not stab or 
punch her or you will get hit. Then, only hit the pole in front of her when she 
shoots electric waves. In between the waves, kick her, but do not get too close. 
While she is on the ground, a pole will have electricity on it. Stab it and the 
electricity will transfer to another pole, and so on. Do this until the door opens. Go 
up the stairs, then Lady Deathstrike will jump up. Kick her until she falls off the left 
side. She will die.


Hint: Defeating Sabretooth:
When fighting Sabretooth for the second time, at first it is the same as before. 
Jump behind him and use your special to throw him into the trucks. After a few 
throws, he will jump behind the flames and start throwing barrels. Punch them 
back at him. When he is done with that, he will come back out and start jumping 
around. When he is in the air, a green crosshair will appear on the ground. Run to 
it and use your special to defeat him.


Hint: Defeating Wendigo:
Wait for him to stop chasing you, then run behind him. Hit him once or twice, then 
option for your special will appear. When you use your special, you will grab his 
tail. Spin him around and toss him. After several tosses, he will stand weak in the 
middle. Run up to him and use your special.


Hint: Best approach and attack:
When scouting for enemies use Wolverine's heightened senses. Once you have 
spotted an enemy, make sure you are close enough to see them clearly, but not 
be spotted. If you watch them for a few moments in heightened senses mode, a 
faint hazy figure of Wolverine will demonstrate the best approach and attack.


Hint: Blooper FMV sequences:
When you complete the game, go to the title screen and select the "Bonus" option. 
Go to "Gallery" and select "Play Movies." Go to the bottom of the screen to the last 
three movies and you will find two bloopers with Wolverine and one blooper with 
the Wendigo.


Hint: Star Wars reference: 
Wolverine's voice is done by Mark Hamill, who played Luke Skywalker. For the 
Juggernaut battle, he fights a man with ultra psychic powers wearing a helmet. 
Juggernaut uses the word "Force" every other line.


Glitch: Infinite score and dog tag loop: 
During Part IV: Grim Discoveries, after you have taken the elevator down into the 
cavern, you will face the Wendigo and three soldiers. Instead of feeding the 
soldiers to the Wendigo, knock the gun out of each of their hands and lure them to 
an open area. Next, position yourself so you can perform a level 3 strike on each 
of them simultaneously. You will be rewarded with 150,000 points and a dog tag if 
the "Claw Slam" Strike is successful. Finally, if you run away from the elevator, 
three more soldiers will rappel into the shaft with you. You can repeat the process 
as many times as needed for lots of points and dog tags. Note: If you die you will 
have to restart the level. For best results, use the "Invincibility" cheat.