Marvel - Ultimate Alliance - Platform: Playstation 3

Invincibility:
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While playing the game, quickly press 
Up, Down, Up, Down, Up, Left, Down, Right, Start.

Level 30 team:
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At the team menu, quickly press 
Up, Left, Up, Left, Down, Right, Down, Right, Start.

100,000 Gold Coins:
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At the team menu, quickly press Up(3), Left, Right, Left, Start.

All characters:
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At the main menu or a S.H.I.E.L.D. save zone menu, quickly press 
Up(2), Down(2), Left(3), Start to unlock all characters. 
If you entered the code correctly, you will hear a sound.

All cinematics:
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At the Review menu, quickly press 
Up, Left(2), Up, Right(2), Up, Start to unlock all cinematics.

All comic book covers:
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At the Review menu, quickly press 
Left, Right(2), Left, Up(2), Right, Start to unlock all comics.

All concept art:
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At the Review menu, quickly press 
Down(3), Right(2), Left, Down, Start to unlock all concept art.

All costumes:
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At the main menu or a S.H.I.E.L.D. save zone menu, quickly press 
Up, Down, Up, Down, Left, Right, Left, Right, Up, Down, Start 
to unlock all costumes. If you entered the code correctly, you will 
hear a sound.

All powers:
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At the main menu or a S.H.I.E.L.D. save zone menu, quickly press 
Left, Right, Left, Right, Up, Down, Up, Down, Left, Right, Start 
to unlock all powers. If you entered the code correctly, you will 
hear a sound.

All wallpapers:
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At the Review menu, quickly press 
Up, Down, Right, Left, Up(2), Down, Start to unlock all wallpapers.

Filler:
-------
While playing the game, quickly press 
Left, Right(2), Left, Up, Down(2), Up, Start. Your extreme attack 
will always be available with no energy cost.

Fourth alternate costume:
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Successfully complete the Combat Training challenge for a 
character to unlock his or her fourth costume. Alternately, 
get a "Bronze" rank in a character's Comic mission.

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

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

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