Marvel: Ultimate Alliance 2 Cheats

Cheat Codes
Enter at the Hero Details Menu/Team Select Menu:

DOWN, UP, UP, DOWN, DOWN, LEFT, RIGHT, DOWN: Infinite Weapon & Health
DOWN, UP, LEFT, UP, RIGHT, UP, LEFT, DOWN: Level 99
UP, UP, DOWN, DOWN, UP, UP, UP, DOWN: Money
UP, UP, DOWN, DOWN, LEFT, RIGHT, RIGHT, LEFT: Power

Unlockable Characters
After choosing the Anti-side, talk to Goliath prior to going to missions and he'll tell you which heroes you can be able to recruit (unlock) through doing a bonus mission.

Cyclops: Score 30,000 or higher, protect him and the civilians and defeat Scorcher in his bonus mission
Gambit: Score 30,000 or higher, obtain as many data discs as possible, defeat as many enemies as possible and go to the exit in his bonus mission
Jean Grey: Score 13,000 or higher, destroy all targets with exploding robots and defeat Grey Gargoyle in her bonus mission
Storm: win 25,000 coins while standing in Thor's way.
The Thing: Score 15,000 or higher, defeat the Lizard and all other enemies in 9 minutes or less on his bonus mission
Thor: Win 15,000 coins within a time limit

Team Bonuses Certain character combinations unlock special boosts
Classic Avengers +15% Max Stamina: Hulk, Thor, Iron Man, Captain America
Fantastic Four +35% Fusion Gain: Mr. Fantastic, Human Torch, Thing, Invisible Woman
Femmes Fatales: +5% Damage: Jean Grey, Storm, Invisible Woman, Ms. Marvel
Natural Forces +5% Damage Inflicted as Health Gain: Storm, Iceman, Thor, Human Torch
Pro-Reg Heroes: +15% Max HP: Iron Man, Mr. Fantastic, Deadpool, Songbird, Ms Marvel, Spider-Man
Shut Up Already! - 15% Extra Health: Play as a team of Spider Man, Iceman, Deadpool, and Human Torch
Think Tank: +15% Max HP: Mr. Fantastic, Iron Man, Green Goblin, Spider-man, Hulk
Thunderbolts: +5% Damage: Green Goblin, Songbird, Venom, Penance
Weapon Specialists: +5% Criticals: Daredevil, Deadpool, Gambit, Thor, Green Goblin, Captain America
X-Men: +15% Max Stamina: Gambit, Jean Grey, Wolverine, Storm, Ice Man, Cyclops, Psylocke