In the new game Virus you have to go into the world of small particles, which are called microbes. Some of them have harmful properties and are capable of infecting a variety of matter with the virus. You will fight with them. You will see an infected field on the screen. It will contain microbes. You will need to clear the field from all creatures. To do this, clicking on the screen will have to change the color of the microbes and make them acquire one color. Then they disappear from the screen, you get points and go to the next level.