| Achievement | How to unlock
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| - 100 aliens escape capture
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- BEGINNING TO LOOK DELIBERATE
| - Killed 50 parachuting aliens
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| - Completed the Earth Levels
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| - Killed 25 parachuting aliens
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| - Completed the Mars levels
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| - Completed the Moon levels
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| - Perfect Challenge Level 14
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| - Perfect Challenge Level 21
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| - Perfect Challenge Level 28
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| - Perfect Challenge Level 35
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| - Perfect Challenge Level 42
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| - Perfect Challenge Level 49
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| - Perfect Challenge Level 56
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| - Perfect Challenge Level 63
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| - Perfect Challenge Level 7
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| - Perfect Challenge Level 70
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| - Perfect Challenge Level 77
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| - Perfect Challenge Level 84
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| - Perfect Challenge Level 91
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| - Perfect Challenge Level 98
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| - Upgraded addons to maximum rate
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| - Completed the Saturn levels
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| - Completed the Titan levels
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| - Killed 100 parachuting aliens
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| - Killed 10 parachuting aliens
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