Infiltrate 10 soldiers on Epic difficulty
Kill 15 bugs within three seconds
Lose 5 health points throughout the course of a level
Kill 25 bugs with the lights out during a level
Finish all missions
Kill 3 bugs in one Nailinator shot
Kill a bug with the Nailinator, when it's on your face
Craft an item
Kill a bug with the Nailinator
Kill a bug in midair with the Nailinator