Recognition Penny Game: "The penny is everywhere: in your pocket, on the street, behind the couch cushions. We've been around them our entire lives, and used them in countless exchanges. So it won't be hard to recognize one, right? " A Game from NASA.
virus2.swf - A nifty puzzle game. Change the color of the cells you control, and you gain control over adjactent cells of that color. Pick the colors carefully to control the whole board as quickly as possible.