X-Men Legends

Xtreme alternate costumes:
Press Up(2), Right, Left, Down(2), Start at the main menu. During game play, go
to an Xtraction save location and use the button next to "Skin".

Alternate costumes:
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).

Play as Beast:
Successfully complete level 1.

Play as Colossus:
Successfully complete the Nuclear Facility level.

Play as Cyclops:
Defeat Mystique.

Play as Emma Frost:
Locate Emma Frost in X Mansion after the Nuclear Facility level.

Play as Gambit:
Successfully complete level 3.

Play as Ice Man:
Successfully complete level 1.

Play as Jean Grey:
Successfully complete level 1.

Play as Jubilee:
Successfully complete level 2.

Play as Nightcrawler:
Successfully complete level 2.

Play as Psylocke:
Successfully complete the NYC Riot/Muir Island/Sewer level.

Play as Rogue:
Successfully complete level 1.

Play as Storm:
Successfully complete level 1.

Colussus without metal, Colussus 90's:
Beat the game.

Bobby Drake, Original Iceman:
Beat the game.

Street Clothes Magma:
Beat the game.

Wolverine 90's, Weapon X:
Beat the game.

Storm's white outfit:
Beat the game.

Defeating Mastermold:
To defeat Mastermold, first use Wolverine and slash away at his feet and jump
when he steps. When the three Sentinel Controllers come out, fight them and
dodge Mastermold's missles by running in circles around the generators. When he
gets his shield, turn on the three generators and wait until it goes away. From now
on, use a long range fighter to finish him off. Remember to dodge the missiles.

Defeating Sentinels:
Choose Wolverine (at a high level) and run behind the Sentinel. Choose the Brutal
Slash attack (R2 + X) and repeat it until the Sentinel falls.

Extra health and energy:
When you receive a new course in the Danger Room, do not complete it. Instead,
fail as much as possible. Every time you do the course, you will receive health
packs, energy packs, armor, etc.

The best way to get a extra utens is to fail the Danger Room courses. If you
complete a course, the next time you send in your team they will not receive
anything for their trouble. However, the first "final exam" as a freshman is a very
easy one. Just do not destroy the generators. By doing this, your team can run
around kicking butt for quite awhile and collect a lot of times. Note: Make sure all
your teammates are set to auto-refill their health at 80% (this can be changed in
the first field of the detail view for your characters). Also, watch for the inevitable
cut off time (about a half hour in). At this point, the villains will no longer give
anything up. Then, destroy the reactors and leave. Make sure to sell Forge
anything you absolutely do not need; otherwise about halfway through your
available time your inventory will be full and you can miss out on some good
items.