Taito's version was based on discrete logic, like other arcade video games of the time. When Dave Nutting adapted the game for Midway, he decided to base it on the Intel 8080, which made "Gun Fight" the first video game to use a microprocessor. Nutting's company Dave Nutting Associates had already used microprocessor technology in prototypes of arcade pinball machines, and the first arcade pinball machine to include a microprocessor, "The Spirit of '76" by Mirco Games, used this technology under license.