Gun Fight (Arcade)
Gun Fight was the first shooter where you control a human, and was originally based on discrete logic, but when Midway adapted it for the US version, they recreated it using an Intel 8080 CPU, which apparently made it the first arcade game to use a microprocessor. The Gun Fight ROMs are 4096 b total, exactly the half the size of the Space Invaders ROMs. A few notable features of the game is animated human characters, aimable guns, and destructible environments.
 Looking for some of the earliest electronic arcade games, I tried out this classic shooter around this time. Sadly, it's a two player-only game.
 Midway made a single-player sequel to this game in 1977, called Boot Hill.
Screenshots marked with 🍒 are created by syltefar and are considered public domain, free to use for anything. If you want to, you can note where you found it and link to this page.