The Atari 2600 version of the classic arcade shooter, Gorf, was programmed by Alex Leavens and first released in 1982 by CBS Video Games. It is a cut-down version of the arcade original*, with graphics and scenes that barely recreate it.
* = Yes, it doesn’t have the fifth ‘Galaxian‘ stage, which most commercial ports of the game are missing due to rights issues. Enhanced homebrew ports of the game have since re-instated it.