Here is the full list of all 35 Zombie Parking achievements.
Restore 5000 health points
Restore 5000 of a bulletproof vest
Get 20 headshots in a row
Earn 1 000 000 points for a game
Use a mass zombie destruction twice in a game
Earn 500 000 points for a game
Kill 100 zombies by exploding Jerry cans
Kill 1000 zombies with a rifle
Get 500 headshots for all time
Kill 500 zombies with a rifle
Kill 50 zombies by exploding Jerry cans
Kill 500 zombies with a shotgun
Kill 1000 zombies for all time
Get 10 headshots in a row
Kill 500 zombies in one game
Get 100 headshots in a game
Use an unlimited ammo twice in a game
Use a shield twice in a game
Use a double damage twice in a game
Use a shield
Run 5 kilometers in a game
Earn 100 000 points for a game
Kill 100 zombies with a shotgun
Kill 100 zombies with a rifle
Kill 10 zombies by exploding Jerry cans
Kill 5 zombies by exploding one Jerry can
Kill 100 zombies in one game
Kill zombie by exploding one Jerry can
Kill 50 zombies with a shotgun
Use a mass zombie destruction
Use an unlimited ammo
Run 1 kilometer in a game
Use a double damage
Get 10 headshots in a game
Kill 10 zombies in one game