The zombie virus has spread in the house and many of the people have been infected. You are here to rescue all of them by using your blood serum. Prevent the virus from spreading further by disinfecting the zombies. Use the arrow keys to move around and hit the Z key to fire the stun gun. After you stun a zombie, use the X key to throw ace – blood serum which will turn the zombie back into his human form. If you get caught by ghost, hit the back and forward arrow keys rapidly to escape. If a zombie interacts with the cured people, they will again turn into zombies so disinfect the whole room to proceed to the next one.