Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock
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|---|
| Big Hitter (50 points) | Get a score of 50,000 in Bodycount in one game.
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| Houston We Have a Problem (75 points) | Complete all Alien Invasion missions.
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| Let the Bodies Hit the Floor (50 points) | Kill 250 worms in Bodycount.
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| Living in the Future (25 points) | Use all of the alien weapons.
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| Not a Scratch (50 points) | Don’t allow the UFO to take any damage in level 6.
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