Marvel: Ultimate Alliance

Character select
At the start menu,press and hold down X and press R white black Y A B B R.

Fourth alternate costume
Successfully complete the Combat Training challenge for a character to unlock his or her fourth costume.

Hard mode
Successfully complete the game on the Normal difficulty setting to unlock the Hard difficulty setting.

Play as Black Panther
Collect the five Black Panther action figures (one is found in each Act) to unlock him.

Play as Blade
Win the toy grab mini-game at the Carnival in Murderworld to unlock Blade.

Play as Daredevil
At a S.H.I.E.L.D. Access point (where you select your team), press Left(2), Right(2), Up, Down, Up, Down, Start to unlock Daredevil. If you entered the code correctly, you will hear a sound. Alternately, collect the five Daredevil action figures (one is found in each Act).

Play as Dr. Strange
Save Dr. Strange in Mandarin's Palace to unlock him.

Play as Ghost Rider
Trade places with Ghost Rider in Hell in order to save his soul to unlock him.

Play as Nick Fury
Successfully complete the game to unlock Nick Fury.

Play as Silver Surfer
At a S.H.I.E.L.D. Access point (where you select your team), press Down, Left(2), Up, Right, Up, Down, Left, Start to unlock Silver Surfer. If you entered the code correctly, you will hear a sound. Alternately, defeat Galactus in the Skrull Throneworld.

Second and third alternate costumes
Gain between two and four levels with a character to unlock his or her second and third costumes.

Unlock Agent of S.H.I.E.L.D.
Unlock Nick Fury.

Unlock Archer Apparel (20)
Unlocked all the outfits for Hawkeye.

Unlock Blue Screen of Death
Defeat M.O.D.O.K.

Unlock Creed Cloth (20)
Unlocked all the outfits for Sabretooth.

Unlock Deathbird's Defeat
Defeat Deathbird.

Unlock Defeated Grey Gargoyle
Defeat Grey Gargoyle.

Unlock Doomed Ending
Defeat Dr. Doom.

Unlock Doppelganger (25)
Doom has spoken with himself.

Unlock Dragon Slayer
Defeat Fin Fang Foom.

Unlock Fleeting Allies (20)
Mangeto has spoken to Xavier.

Unlock Game Over
Defeat Arcade.

Unlock Gamma Grab (20)
Unlocked all the outfits for Hulk.

Unlock Giant Relief
Defeat Ymir.

Unlock Magnetic Regalia (20)
Unlocked all the outfits for Magento.

Unlock Mandarin's Downfall
Defeat Mandarin.

Unlock Mephisto's Defeat
Defeat Mephisto.

Unlock Mutant Love (20)
Cyclops has spoken to Jean.

Unlock Optic Outfits (20)
Unlocked all the outfits for Cyclops.

Unlock Scarlet Swashbuckler
Unlock Daredevil.

Unlock Son of a Devil
Defeat Blackheart.

Unlock Surfs Up
Unlock Silver Surfer.

Unlock Swimming with the Fish
Defeat Kraken.

Unlock Symbiote Skins (20)
Unlocked all the outfits for Venom.

Unlock Teleport Threads (20)
Unlocked all the outfits for Nightcrawler.

Unlock The Executioner's Blade
Defeat Executioner and Enchantress.

Unlock The Power Cosmic
Defeat Galactus.

Unlock The Trickster
Defeat Loki.

Unlock Titanic Victory
Defeat Titannus.

Unlock Underwater Battle
Defeat Tigershark and Attuma.

Unlock Wakandan Royalty
Unlock Black Panther.

Unlock Warrior's Path
Defeat Gladiator.

Unlock Wrong Claws (20)
Sabretooth has been mistaken for wolverine.