· The 5200 version (pictures #1 and #2) is a greatly-improved one compared to the 400/800 version (pictures #3 and #4).  It also features a little animation on the title screen which may be unique to any other 5200 games – after a few seconds, the “Centipede” name scrolls off the right side of the screen (picture #1) and then the screen fades out.

· 2 400/800 versions exist.  One is copyright dated 1981and the other 1982.