| Achievement | How to unlock
|
|---|
- Baiter Bane ( 20 points )
| - During an Xbox Live Co-op game, kill five baiters in any level without using any smart bombs.
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- Competitive ( 15 points )
| - Win 30 Xbox Live versus games.
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- Cooperation ( 10 points )
| - Get a score of 15,000 during an Xbox Live Co-Op game.
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- Fifteen Grand ( 15 points )
| - Get a personal score of 15,000.
|
| - Make it to the fifth wave.
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- Getting Better ( 15 points )
| - Make it to the third wave.
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| - Shoot five mutants in one game.
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| - Rescue a human with a mid-air catch.
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| - Make it to the second wave without losing any humans.
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- Protect All Humans ( 25 points )
| - Lose no humans in the first three waves.
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| - Survive the first 75 seconds without shooting, bombing, or teleporting.
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- Twenty-Five Grand ( 25 points )
| - Obtain a personal score of 25,000.
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