Entry location: In the options menu, choose "Enter Code".
246246 - Unlocks A.I.M. Agent/ Blue Suit A.I.M. Agent 925627 - Unlocks Captain America and US Agent (Wal - Mart version only) 888888 - unlocks Cheat - No Blocking 777777 - unlocks Cheat - Super Knockback 999999 - unlocks Doctor Doom, Ultimates Doom, and Professor Doom 666666 - unlocks Falcon and Ultimates Falcon 222222 - unlocks Hulk, Grey Hulk, and Red Hulk 111111 - unlocks Iron Man and War Machine 555555 - unlocks Silver Surfer, Anti Surfer, and Gold Surfer 925678 - unlocks Spider - Man and Symbiote Spider - Man (Wal-Mart version only) 444444 - unlocks Thor, Chain Armor Thor, and Loki Thor 333333 - unlocks Wolverine, his brown costume, and Feral Wolverine
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