Zombie Combo

좀비를 쏘고 콤보를 높게 유지하고 새로운 업그레이드를 얻으십시오!

Features:

* More rooms.

* More enemys to fight against.

* After unlocking high combo or high wave spawning Boss.

* Great reward system.

* More Weapons.

* Collecting curency to unlock defence structures. For example (auto turets, healing tent, rocket towers... etc.)

* More characters to choose