NOTE: Press the START button after entering each of the following codes to activate them.

Enter the following codes at the Team Menu screen:

300,000 S.H.I.E.L.D Credits - Up, Up, Up, Left, Right, Left,Start,Left,Start,Left, Start
Level 99 - Up, Left, Up, Left, Down, Right, Down, Right

Enter the following codes at the Review Menu:

All Cinematics - Up, Left, Left, Up, Right, Right, Up
All Comics - Left, Right, Right, Left, Up Up, Right
All Loading Screens - Up Down, Right, Left, Up, Up, Down
All Concept Art - Down, Down, Down, Right, Right, Left, Down

Enter in either the Pause Menu or the Hero Management Screen:

Unlock All Characters - Up, Up, Down, Down, Left, Left, Left
Unlock All Outfits - Up, Down, Up, Down, Left, Right, Left, Right, Up, Down
Unlock All Powers - Left, Right, Left, Right, Up, Down, Up, Down, Left, Right

Enter the following code during gameplay (not in a menu):

God Mode - Up, Down, Up, Down, Up, Left, Down, Right