Don't understand – Zombies GO! Fight The Dead Walking Everywhere with Augmented Reality (FREE Edition) Review

How many times do they need to have a clean head shot, or any other body part for that matter before they die. I was excited about this game until I shot the same zombie over 50 times and it was still there. Dumb....
Review by It's justice on Zombies GO! Fight The Dead Walking Everywhere with Augmented Reality (FREE Edition).