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