Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Beat 'em Up	Kill thousand centipedes.
Burning For You	Reach 20 000 points in arcade mode.
Deadline	Kill ten enemies with a single shot from a railgun.
Don't Fear The Reaper	Resurrect an ally in coop mode.
Eyes On Fire	Reach 40 000 points in arcade mode.
Feel The Thunder	Kill 400 scorpions.
Fireworks	Kill fifteen enemies in rapid succession.
Harvester Of Eyes	Kill 800 spiders.
I Am The Storm	Detonate fifty bombs with a single shot.
Make Rock Not War	Kill the enemy without doing damage to it.
Mirrors	Complete all challenges in coop mode.
Shadow Warrior	Complete all challenges in a single player mode.
Shooting Shark	Reach 2 000 points without missing a single shot.
Sole survivor	Survive three minutes.
Still Burnin'	Reach 30 000 points in arcade mode.
The Reaper	Kill 600 fleas.