Here is the full list of all 29 Hard Rock Zombie Truck achievements.
Rescue 30 cats
Collect all awards
Blow up 700 zombies
Kill 6000 zombies
Kill 3000 zombies in the air
Kill evil brain
Crush 700 zombies
Blow up 400 zombies
Kill Evil Evil monster
Rescue 15 cats
Crush 400 zombies
Kill 1500 zombies in the air
Kill 3000 zombies
Blow up 200 zombies
Kill 30 cats
Kill Bad Santa
Kill BOB
Rescue 10 people
Crush 200 zombies
Kill 500 zombies in the air
Kill 20 people
Kill 1000 zombies
Rescue 6 people
Kill 10 cats
Kill 10 people
Rescue 3 cats
Kill 5 cats
Kill 3 people
Rescue 3 people