The zombie apocalypse has begun and everyone seem to be infected. You are the lone survivor standing on the Gun Shop. You simply cannot allow those evil zombies to break into the shop and grab the guns and ammo that could make them even more dangerous. Therefore, you are left with no choice but to use the powerful weapons and various upgrades to hunt down all the approaching waves of zombies. Use the mouse to play this cool online defense game. Try to shoot the enemies on the head for maximum impact. Your scores in the game reflect your performance in the game.