Guiding a single point of light seems most suitable in a highly abstract game, and the pixel has shined in several of these. The driving real-time puzzle game Qix, a coin-op game from the 1980s, is a notable one. (Admittedly, the player’s pixel is highlighted with a surrounding diamond, but it’s still reasonably considered a dressed-up pixel.) The choice of avatar clearly didn’t come about because the programmers were too lazy to punch up a spaceship bitmap or something – the pixel makes sense within the scheme of Qix. The point naturally is moved to draw a line, which is naturally connected to another line to shade a region. —Nick Montfort —A Pixel is You! (Grand Text Auto)