Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Bullet Time	Survive wave five.
Can't Touch This	Progress ten waves without losing any health.
Endless Quiver	Fire one hundred arrows.
Exterminator	Play a development build.
From Thin Air	Fire ten thousand arrows.
Glad Its Not Real	Die twenty times in one playing.
Graduation Day	Begin the second tier.
High Roller	Score over 7000.
Kilobolt	Fire 1,000 arrows.
Line Up	Shoot three targets with one arrow.
Outlaster	Reach a score over 15,000.
Over 9,000	Reach a score over 9,000.
Quick Draw	Fire a flaming arrow.