Use WASD or arrow keys to move, and bump into food that you are bigger than to eat it. So far you can only get to a couple millimeters.
V1 - release V1.1 - added food up to about 250 nanometers V1.2 - added food up to about 10 micrometers V1.3 - added music V1.4 - added food up to about 1 millimeter V1.5 - added different music and changed some stuff V1.6 - more levels