If you enjoyed the sniping action in Kill Shot, Kill Shot Virus spreads it out to the zombie genre, infecting you with the heroics of saving yourself, the survivors, and the entire human race. Apart from the zombie-shooting, there's also a whole load of upgrades on offer. Deck yourself out with fancy machinery or go out in style with all their cool gear. Perfect for a quick and easy fps dose, it gets a score of 8.07.