Here is the full list of all 13 Zombie Derby 2 achievements.
Complete tutorial
Kill 100 zombies
Make 20 flips
Kill 5 birds
Get 3 stars at one level
Complete story levels
Get all stars
Pimp up all cars
Buy a sticker
Die 20 times
Earn 12000 points
3000 m in SURVIVAL mode
Complete 5 random levels