X-Men: Legends Cheats

If you find yourself with more danger room discs than missions, then try
this.  Go to healers den and purchase the missing qualifying exam to
advance.  Other programs are also available there.  After purchasing
them, your only problem should be beating the challenge.

Choose Wolverine (at a high level) and run behind the Sentinel. Choose the Brutal Slash attack and repeat it until the Sentinel falls.

Unlock Characters
Colossus:
Beat Nuclear Facility Mission.

Cyclops:
Defeat Mystique in NY.

Emma Frost:
After Nuclear Plant Mission.

Gambit:
Complete Third Level.

Ice Man, Jean Grey, Beast, Rogue, and Storm:
Beat the First Mission.

Jubilee, Nightcrawler:
Complete Second Mission.

Magma: Complete her second round of training.
Psylocke: Beat the New York riot Mission.

Successfully complete the game to unlock the classic costumes (Bobby Drake/original Iceman, 1990's Colossus/without metal, original Beast, 1980's Cyclops, original Jean Grey/Phoenix, original Nightcrawler, street clothes Magma, 1990's Wolverine/Weapon X).

The “Leadership” quality possessed by Storm and Cyclops can be a tremendous asset to the team. This skill multiplies both damage and experience when successfully completing a combo. At its highest level Leadership will multiply damage by 150% and experience by 25%. Use Storm and Cyclops together to multiply these values a second time. That’s 625 damage of a base 100 attack. With a good roll of the die, combo attacks upwards of 1500 are possible by the end of the game.