| Unlockable: | How to unlock: |
| Unlimited Handgun Ammo | Beat Arcade mode once |
| Unlimited Special Weapons Ammo | Beat Arcade mode twice |
| Freeplay (aka unlimited continues) | Beat Arcade mode once |
| Crisis Missions | Beat Arcade mode once |
| VSSE agents background | Beat Arcade mode |
| Captain Rush background | Beat Complete Mission |
| Elizabeth Conway background | Beat the Crisis mission final battle |
| Music Player | Beat the final mission of Crisis Missions. |
