Developer: John Emerson

John Emerson designed G.I. Joe: Cobra Strike, a 1983 Atari 2600 game published by Parker Brothers. The site has its European edition, Action Force, which is the same game renamed for the PAL market, where the G.I. Joe toys were sold as Action Force. You defend recruits from a giant robot cobra with a moving shield and a gun turret. The original North American release is also here as G.I. Joe: Cobra Strike.
The game is listed below, ready to play in your browser.