Successfully complete the indicated task to unlock the corresponding mod:
- Double-Physics: Successfully complete Campaign mode on the Medium difficulty. This mod doubles the force of explosions.
- Hollywood Mode: Successfully complete Campaign mode on the Easy difficulty. This mod gives enemies big heads.
- Tough Guys: Successfully complete Campaign mode on the Hard difficulty. This mod enhances the health of enemies.
Successfully complete one of the following tasks to get a trophy:
- Private (Bronze): Complete the game on Easy Difficulty.
- Kaboom (Bronze): Destroy the gas station.
- Poll and Dive (Bronze): Survive the pool attack.
- Droppin Bombs (Bronze): Call in the airstrike to defeat the Command Center.
- Seen Your Video (Bronze): Watch an unlocked video.
- Staff Sergeant (Bronze): Complete the game on Normal Difficulty.
- Long Range (Bronze): Kill 20 enemies with a sniper rifle.
- Color Me Impressed (Silver): Complete a mission on Normal without dying, failing, restarting, or continuing campaign.
- Hummer (Silver): Kill 15 enemies on the HMV turret.
- Rocketman (Silver): Kill 2 aliens with one Rocket.
- Sergeant Major (Silver): Complete the game on Hard Difficulty.
- One Hundo (Gold): Unlock all the unlockables.