Complete the indicated task to unlock the achievement.

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