Zombie battle

Soldier, your city is in peril! An onslaught of zombies is approaching! They are powerful, swift, and ravenous for brains! It's time to arm yourself with your most potent weapon to battle them! The zombies are never-ending, will you surrender? Tap the screen and move your finger to fire arrows. Drag and drop special attacks. Boost your Attack to inflict more harm to the zombies. Uncover more weapons as you progress through later levels. Upgrade Wall Defense to raise your life points. Upgrade Research Center to raise Energy points, which are used to cast special attacks.