Iron Man Cheats

NOTE: As their name suggests hints are not exactly Iron Man cheats, and are usually just simple (but very useful) tips on how you can unlock secret level, features, find hidden areas and such. Hopefully these will make playing Iron Man even more entertaining.

Unlockable Armors for use in One Man Army Mode, and Mission Archive
Armors can always be used in One Man Army Mode, but you have to beat the game first to use other Armors (besides the Mark III) in Mission Archive.

Classic: Beat the "One Man Army vs. Mercs" Challenge
Classic Mark I: Beat the "One Man Army vs. AIM" Challenge
Extremis: Beat the "One Man Army vs. Maggia" Challenge
Hulkbuster: Beat the "One Man Army vs. AIM-X" Challenge
Mark II: Beat the "One Man Army vs. Ten Rings" Challenge
Mark III: Unlocked by Default