Virus Attack!

This game is also a simulation of what happens when a virus infects blood cells in the bloodstream. In this game, white blood cells and red blood cells manage to survive, but platelets can get infected and will "become" the virus (become infected by the virus) to make the game harder each second.
Use the up, down, left, and right arrow keys to control the white cell and move in the corresponding directions. Avoid the viruses! Hitting one will make you lose each point. Try to catch the blue bacteria; each one will increase your score by 20 points. The game ends when the time is up or if the score is less than zero.