Those stupid zombies are back and you are humanity's last hope to keep them brainless. But beware, ammo is limited, so you will have to get crafty and use the straight bullets, grenades, split and buckshots in the most effective way possible to survive the 720 levels.
Additional Information from Google Play:
: 2.3 +
: 10 000 000–50 000 000
: 3+ years