Not a video game, the Topo was a robot designed in the 1980s by Androbot Inc. It was programmable via primrily through the Apple II, although there was also a user made program for the Windows 9x operating systems.
I mention it becuse it is awesome AND created by one of the fathers of video games, Nolan Bushnell.
What gets me in the sheer size of the robot.
Apparently, they origionally retailed for just under $1,600.00 and the signed and numbered editon was limited to the first 500 buyers.