The object of the game is to save as many civilians (in green) from the zombies (in red).
Cure zombies by switching to a vaccination gun. Be careful though, civilians will mutate into shadow zombies if they've been infected several times. Shadow zombies are faster and hard to spot.
Press the Up, Down, Left, and Right keys to control your character. Press spacebar to switch to your vaccination gun.
Accelerometer controls for mobile coming soon.