| Achievement | How to unlock
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| A bigger, better, scalier rat. | Kill the Samurai that's wrecking the maintenance power conduits.
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| Big spaceship lights | Enable power in the Process Control level.
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| Boomsticked | Collect the Shotgun.
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| Dance little flames, dance | Spread fire to 5 enemies in under 20 seconds.
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| Ensign Crawlerbane | Kill 50 crawlers, of any description.
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| Ensign Livingstone, I presume | Kill an Exploder, a Baby Crawler, a Crawler, a Big Cousin, a Seeker and a Samurai.
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| Firestarter, twisted firestarter | Collect the fire ammo blueprint.
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| First Ooze | Kill your first Scavenger enemy.
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| Get off my ship! | Kill the Scavenger Queen.
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| Good girl | Complete the training level all the way through to the exit portal.
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| It's time for science! | Reach the laboratories hub.
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| Mad engineer | Collect the full set of F. Magnusson logs.
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| My little friend says hello | Collect the Assault Rifle.
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| Semper fodder | Collect the full set of B. Kowicz logs.
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| Skipping School | Skip the training level by exiting through the very first portal.
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| The bunny o' war | Collect the Grenade Launcher.
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| Unfortunate survivor | Collect the full set of N. Fortunate logs.
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