Hillbilly Doomsday (EP)
18 Achievements
1-3h
PS4
A world without zombies - Stage Three
Kill 1000 enemies
64.6%
How to unlock the A world without zombies - Stage Three achievement in Hillbilly Doomsday - Definitive Guide
This is cumulative, doesn't need to be in one life or continue. If you are killing every enemy you come accross (which you should be), you will get this one somewhere between the third and fourth boss (maybe earlier).