In Shoot Zombies, you need to shoot the zombies before they reach near you. Here, your aiming skills are needed. Also, you need to reload the gun time to time. If the zombies reach you, then slowly game over. Score as much as you can and enjoy the game.
Also after playing the game review it in playstore as well as google forms whose link is provided below.
https://docs.google.com/forms/d/e/1FAIpQLSfnXpd0wtgUv9wzRKos4302oQu7LZpKn9crzGxJZnpsZcuNyw/viewform