Zombies, Aliens and Guns

Aliens have attacked the planet, and they’re turning innocent people into mindless zombies. It won’t be long before the invaders have destroyed the planet unless somebody with guns stands in their way. That’s where you come in! Lead a cadre of soldiers who are ready to take down every last enemy in their path. You can fight alone or with a friend thanks to the local co-op mode! Try to beat the 33 levels and unlock all the 7 survival levels and the boss rush mode!