Developer: Amiga

Amiga Corporation, the company later known for the Amiga computer, began by making accessories and games for the Atari 2600, including the Joyboard, a board you stand on and lean to steer. The site has one game connected with Amiga: Off Your Rocker, a Simon-style memory game for the Joyboard. It was made for Amiga by the developer VideoSoft and finished in 1983, but Amiga left the 2600 market before releasing it.
You can play it below, right in your browser.