Here is the full list of all 26 Pound of Ground achievements.
Throw 26 dead zombies under water.
Blow up the first generator on the farm without killing ANY zombies on the way.
Perform car jumps with total distance of 3.14159265 km.
Perform a car jump over more than 172m.
Hit the speedometer limit.
Tune up your car to the max.
Finish the Game on Hard Difficulty. Don't be a wimp!
Reach the game's end within 5 minutes. Yes, MINUTES!
Kill 15 zombies within 25 seconds using your firearms only.
Kill 5 hyenas with a dynamite.
Find the Indian drug dealer.
Kill 68 zombies using any weapons without curing yourself.
Kill 911 zombies with your weapons or your car.
Exterminate the Mafia family.
Run 192 zombies over with your car.
Kill 4 zombies with a single crossbow shot.
Collect 1111 coins.
Clear the Airport location and save all the hotties!
Kill at least 10 zombies by shooting the explosive barrel.
Kill 66 stunned zombies with your baseball bat.
Find the guitar case.
Fight your way through the first underground while using only the baseball bat.
Make the zombies fly over the total of 1212m with your baseball bat.
With a handgun kill 6 zombies without reloading.
Locate your red car.
Make a zombie fly over 33m with your baseball bat.