Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Alone in the Dark (secret)	(Secret)
Crystal Collector I	Mine 50 crystals.
Crystal Collector II	Mine 100 crystals.
Crystal Collector III	Mine 500 crystals.
Hungry Hungry Hero	Defeat the first boss.
Killer in Training	Kill 10 spiders
Make Them Scream	Push 10 spiders from a ledge at the same time.
Mother Bird	Use a containment flare to trap "food" for a lamprey.
Pacifist Run (secret)	(Secret)
Packing Light (secret)	(Secret)
Power Hungry	Mine every crystal possible.
Savvy Spelunker	Complete the Caves Area.
Survivalist (secret)	(Secret)
Terminator	Kill every enemy possible.
Trapper Keeper	Trap 10 spiders in a single containment flare field.