Gun Blood Zombies Building description

The entire building was occupied by zombies and your girlfriend was trapped on the roof. With your own efforts and your gun blood to clean up the entire building, go hero!
★ Complete different difficulty, trigger different scenarios
★ 25 kinds of guns waiting to be unlocked, real realistic firearms
★ Zombies are violent, say goodbye to slow zombies
★ You can get gold coins through endless mode
★ Once captured by the zombies, please click on the screen crazy to break free
You may never save her, maybe. . .