Complete Shanghai Level
Complete the game in normal difficulty mode.
Defeat Dr. Doom
Complete Military Base Level
Upgrade all of The Thing's Powers
Upgrade all of the Human Torch's Powers
Upgrade all of the Invisible Woman's Powers
Upgrade all of Mr. Fantastic's Powers
Complete Terrax Level
Defeat Terrax
Complete Red Ghost Level
Complete New York Level
Complete Skrull Lair Level
Defeat Super Skrull
Successfully execute a 2-player fusion attack.
Successfully unlocked all content in game.
Find all of the silver four symbols.
Find all of Doom's Spy bots in the game.
Complete the game in Fantastic mode.