When you get to the wherehouse walk up the stairs be care for floating barrels the blowup watch for magneto to stop near open ledges then press and hold x-spuarehe will auotmaticly jump on magneto and hit him so keep doing this process until defeat him. IIt might be useful to use a cheat or too might help thanks for letting me write this little tiddbit.
Sabertooth 1: Wait for the tanker to come down and keep slashing sabertooth until his life is right down.
Then strike him when you're behind him and chuck him into the tanker.
He'll then get up and walk around but he won't hurt you and when he falls over, stand at his feet and strike him.
Wendigo: When he charges, run like hell but don't fall off (Unless you want a huge spike stabbing you in the back!!!)!
He should soon stop charging, so sneak up behind him and slash him once then press strike when it comes up.
Move the left analog stick left and right very fast to throw him further. Repeat several times.
Sabertooth 2: Keep slashing him as before until he starts trying to jump on you.
A green target should appear where he's going to land so stand on it and press strike when it comes up to throw him out the way and cause some serious pain for him!
Juggernaut: When he's running, he's invincible, so to slow him down, lead him into an electric post so he gets thrown into the middle.
Then slash him and hit strike as often as you can to stab him through his helmet(Watch out for stink bombs!). When Collosus comes in, walk up to him and hit strike to get thrown at Juggernaut and finish him off!
Magneto: Hints not yet discovered.
Lady deathstrike: Try and delay her with strikes to give you a chance to get up the ladder. Then take out the 4 control panels to disable the electric fence and cut through it.
Try and slash the posts when they go electric (When facing Lady Deathstrike) to give her a shock. Keep going until she falls over, then open the door in the same way. Once you're on the helipad, keep slashing her until she reaches the edge (Don't fall yourself!) and strike to finish the game
NOTE: You dont get to face Omega Red (The weirdo in the void with the metal tentacle things) in the game as wolverine finds out at the end.