A strange toxin has entered the city and almost all people in the city were transformed into the Zombies. The Zombies are very ferocious and they can destroy everything that prevents them. There is only one change to save the city, it is the Special Squad. The Special Force have elite and brave soldiers. Each soldier has different weapon type, constitute a strong team can defeat everything. So now, let's lead you Special Squad to kill the Zombies and save the city. Besides, you also have the different skills to help you a lot of in defeating the Zombies. It's great that you can use your stars and gems to upgrade your soldiers and skills to become stronger. Features: - 8 soldiers with different skills and stats; - 9 types of zombies with different abilities (freeze unit, suicide bombers...); - 3 skills you can use; - Diversity upgrade systems (health, damage, range, critical...); - There are a lot of quests to earn more stars and gems; ...