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.
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.
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.
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.
Defeating Juggernaut
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.
Cheat Codes
Press [Punch] [Sense] [Punch] [Sense] [Punch] [Punch] [Crouch] [Sense] at the main menu. The sound of a click will confirm correct code entry. Then, press the following [Punch] [Sense] [Punch] [Sense] [Punch] [Punch] [Sense] [Crouch]. You will hear two clicks. After the second click, the "Level Select" options should now appear instead of the "Continue" option at the main menu. Also, a cheat menu that includes an "Invincibility" option will appear when game play is paused. This unlocks everything except the Strikes.