ACHIEVEMENT - HOW TO UNLOCK
Boom! Headshot! - Shoot 10 zombies offmap with Sniper items.
Buspocalypse - Complete Act 1.
Con-GRAVE-ulations - Complete all 10 blocks in Graveyard Survival.
Endangered Species - Complete Act 2.
Epic Oops! - Kill 1,000 Survivors.
First Timer - Kill the first zombie in the Campaign.
For the Greater Good - Kill 500 Survivors.
Friendly Fire - Kill 100 Survivors.
George Metesky - Kill 5 non-Zombies with a single grenade.
Grand Theft Auto - Open 20 vehicles.
Grande Surround - Surround 15 zombies at once.
Late Title Card - Witness the glory of aggressive fonts!.
Movie Lover - Watch America's Fighting Dinosaur at the drive-in.
Occupy Town Hall - Complete all 20 blocks in Town Hall Survival.
Oh, the Humanity! - Kill 8 or more survivors with a single air strike.
Oops! - Kill 10 Survivors.
Paleozombology - Complete Act 3 by defeating the boss without the forklift.
Vaccination into Mutation - Apply the zombie cure to one patient. Congratulations. You created super zombies.
Venti Surround - Surround 20 zombies at once.
Winnar! - Complete the campaign.
Zombie Assassin - Kill 500 Zombies.
Zombie Butcher - Kill 100 Zombies.
Zombie Massacre-er - Kill 5,000 Zombies.
Zombie Murderer - Kill 1,000 Zombies.
Zombie Tickler - Kill 10,000 Zombies.