| Achievement | How to unlock
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| 3×50 ( 30 points ) | In any single level, purge at least 150 enemies, killing a minimum of 50 with each weapon type.
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| Aint No Rookie ( 10 points ) | Complete the boot-camp without taking damage.
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| All Hail The G Man ( 50 points ) | Complete 40 pages of endurance in hard mode.
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| Army Of One ( 50 points ) | Kill 10,000 martians.
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| Boom Boom ( 30 points ) | Use a launcher weapon to kill 10 martians in a single blast.
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| Completist ( 40 points ) | Complete the game in all three difficulty settings.
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| Crispy ( 10 points ) | Purchase the lightning gun.
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| Fully Loaded ( 40 points ) | Get 2000 rounds of ammo into your minigun.
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| Getting Started ( 10 points ) | Kill 1,500 martians.
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| Gifted ( 10 points ) | Complete 10 pages of endurance in easy mode.
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| Hat Trick ( 30 points ) | Upgrade all three weapon-types in a single visit to a vending machine.
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| High Flier ( 20 points ) | Collect all meteor rocks in a chapter.
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| Home Coming ( 20 points ) | Complete the army-base chapter.
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| Ka-boom ( 10 points ) | Purchase the plasma launcher.
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| Martian Purger ( 30 points ) | Kill 5,000 martians.
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| Mean Streets ( 30 points ) | Complete the city chapter.
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| No Sweat ( 20 points ) | Complete 20 pages of endurance in normal mode.
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| Pacifist ( 30 points ) | Complete a level without firing a weapon or receiving any damage.
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| Rooted ( 40 points ) | In story mode, city chapter, defend one spot turning left and right, but don't move for 2 mins.
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| Rush-a-holic ( 40 points ) | Grab all rush crates in story mode.
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| Space Marine ( 10 points ) | Complete the Moon chapter.
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| Super Market Sweep ( 40 points ) | Buy all available items in a single visit to a vending machine.
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| Sustain ( 30 points ) | Purge 50 enemies in a single beam-attack (one press of the fire button).
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| To The Teeth ( 30 points ) | Purchase all weapons.
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| Vending Machine Ping Pong ( 30 points ) | In story mode, army-base chapter, access both vending machines, alternating between them 5 times.
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| Yeah Baby ( 10 points ) | Purchase the minigun.
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