Game Mods
| Unlockable | How to Unlock |
|---|---|
| Double-Physics (Doubles the force of explosions) | Beat the Campaign on Medium |
| Hollywood Mode (Enemies have big heads) | Beat the Campaign on Easy |
| Tough Guys (Enhances the health of enemies) | Beat the Campaign on Hard |
Achievements
| Achievement | Description |
|---|---|
| Color Me Impressed (10) | Complete a mission on Normal without dying, failing, restarting, or continuing campaign |
| Droppin Bombs (5) | Call in the airstrike to defeat the Command Center |
| Hummer (10) | Kill 15 enemies on the HMV turret |
| Kaboom (5) | Destroy the gas station |
| Long Range (10) | Kill 20 enemies with a sniper rifle |
| One Hundo (50) | Unlock all the unlockables |
| Pool and Dive (5) | Survive the pool attack |
| Private (15) | Complete the game on Easy Difficulty |
| Rocketman (10) | Kill 2 aliens with one Rocket |
| Seen Your Video (5) | Watch an unlocked video |
| Sergeant Major (50) | Complete the game on Hard Difficulty |
| Staff Sergeant (25) | Complete the game on Normal Difficulty |
