Here is the full list of all 42 Guns n Zombies achievements.
Complete all levels on HELL difficulty.
Complete all levels on HARD difficulty.
Complete the game as Medic.
Kill 4000 enemies with sniper guns.
Complete game with Warrior.
Complete game in cooperative mode.
Kill 4000 enemies with Electric rifles.
Complete the N'Aliens campaign.
Kill 2000 enemies with Electric rifles.
Play 15 minutes in cooperative mode.
Buy any Electric rifle.
Destroy 1200 Crystal Walls.
Kill 2000 enemies with sniper guns.
Complete all levels on 3 stars.
Kill 20000 enemies.
Kill 4000 enemies with grenade launchers.
Complete 8 battles on HELL difficulty.
Kill 4000 enemies with shotguns.
Every battle scene has a materia. Find them all!
Complete the game.
Complete game with Mechanic.
Kill 4000 enemies with auto rifles.
Kill 2000 enemies with grenade launchers.
Kill 10000 enemies.
Kill 4000 enemies with turrets.
Complete 8 battles on 3 stars
Buy any 3rd level tower during battle.
Kill 900 enemies with another enemy attack.
Kill 2000 enemies with shotguns.
Don't use med kits 15 battles in sequence.
kill 15 enemies in 1 seconds with any gun.
Don't use turrets while 10 battles.
Kill 5000 enemies.
Buy any special ability in the store.
Kill 2000 enemies with auto rifles.
Сure once.
Use any special ability 100 times.
Buy 5 weapons in store.
Kill 400 enemies with another enemy attack.
Play 30 minutes in battles.
Fully upgrade any turret.
Fully upgrade any weapon.