Virus Ninja 2 is a reaction game in which the player must strike like a ninja to kill the viruses. The viruses will float through the screen. Players can drag the mouse or swipe their finger across the viruses to slice them in half and make them burst. The aim of the game is to kill as many viruses as you can. Players can win extra time and gather medication to help fight the viruses, but they mustn’t chop up the bombs.