This game is based on one designed for first and second grade students, to teaching something about pattern recognition and sequencing. I often use this game in classes, starting with the media and trying to program as much of it as I can in front of the students, showing them the intricacies of apparently simple actions (click on graphic, check for enabled state, change z-plane, attach to / detach from mouse, etc). Usually I can get a good chunk of the game done in two hours or so, taking questions as I go.