Kill 100 Zombies!
Kill 10 zombies!
Kill 1000 Zombies!
Kill 10 Armored Zombies!
Kill 25 Spitter Zombies!
Kill 50 Armored Zombies!
Kill 100 Spitter Zombies!
Kill 5 Charger Zombies!
Kill 100 Charger Zombies!
Kill 20 Charger Zombies!
Kill a Boss!
Finish 3 Missions a Day!
Upgrade a Car to the Max!
Upgrade a Weapon to the Max!
Completed a day without killing a Zombie!
Make a 20 Combo!
Finish the Story Mode!
Make a 50 Combo!
Make a 100 Combo!
Finish the story mode in 60 days!
Make a 200 Combo!
Finish the story mode in 100 days!
Get 3 stars on a Time Trial map.
Survive 5 waves!
Survive 20 waves!
Survive 10 waves!