Unlockable: Suits
To unlock the following suits for Iron Man to use, complete the requirement listed.
- Classic – Complete the challenge "One Man Army vs. Mercs"
- Classic Mark I – Complete the challenge "One Man Army vs. AIM"
- Classic Mark II – Complete the challenge "One Man Army vs. Ten Rings"
- Classic Mark III – Automatically unlocked
- Extremis – Complete the challenge "One Man Army vs. Maggia"
- Hulkbuster – Complete the challenge "One Man Army vs. AIM-X"
- Ultimate – Complete Story Mode in its entirety