Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Advanced	Kill 500 zombies in one game.
Armageddon	Use a mass zombie destruction.
Boom	Kill zombie by exploding one Jerry can.
Brains	Get 10 headshots in a game.
Brains Destroyer	Get 500 headshots for all time.
Brains Detected	Get 100 headshots in a game.
Double Armageddon	Use a mass zombie destruction twice in a game.
Double Damage	Use a double damage twice in a game.
Double Shield	Use a shield twice in a game.
Double Unlim	Use an unlimited ammo twice in a game.
Exploder	Kill 5 zombies by exploding one Jerry can.
Exploder Advanced	Kill 50 zombies by exploding Jerry cans.
Exploder Begginer	Kill 10 zombies by exploding Jerry cans.
Exploder Master	Kill 100 zombies by exploding Jerry cans.
First Score	Earn 100 000 points for a game.
First Steps	Run 1 kilometer in a game.
Good Damage	Use a double damage.
Good Score	Earn 500 000 points for a game.
Hello, Zombie!	Kill 10 zombies in one game.
Kill Zombie	Kill 100 zombies in one game.
Lot of Brains	Get 10 headshots in a row.
Professional	Kill 1000 zombies for all time.
Rifle Advanced	Kill 500 zombies with a rifle.
Rifle Begginer	Kill 100 zombies with a rifle.
Rifle Master	Kill 1000 zombies with a rifle.
Runner	Run 5 kilometers in a game.
Sentinel	Restore 5000 of a bulletproof vest.
Shield	Use a shield.
Shotgun Advanced	Kill 100 zombies with a shotgun.
Shotgun Begginer	Kill 50 zombies with a shotgun.
Shotgun Master	Kill 500 zombies with a shotgun.
Survivor	Restore 5000 health points.
Unlim	Use an unlimited ammo.
Unreal Score	Earn 1 000 000 points for a game.
Where is My Brains?	Get 20 headshots in a row.