[4][6] Based around two Old West cowboys armed with revolvers and squaring off in a duel, it was the first video game to depict human-to-human combat.

Midway's version, Gun Fight, restricts each player to their respective portions of the screen and also increased the size of the characters.

[19] Gun Fight featured two cowboys on a movable track behind rock walls were separated by a field of objects like cacti, trees, and a saloon.

The game features two sets of controls – one joystick to move the character and fire the weapon and another for aiming the arm.

With the shifter circuit, the microprocessor could quickly shift a picture byte by several bit positions, giving it more time for other work.

The game was programmed in assembly language using an Intellec 8 microprocessor development system, with graphical elements translated from hexadecimal code.

Controls were altered slightly from Western Gun, with a larger aiming stick featuring a wider range of movement rather than purely vertical.

Their version of the game eliminated the rock obstacles, added indestructible trees, and created a progression of stages after each round.

In Japan, Western Gun was among the top ten highest-rated arcade video games of 1976 by operators polled in the 1976 New Year's Holiday period.

[24] In March 1976, the first annual RePlay arcade chart listed Gun Fight as third best-charting video game among its polled operators.

[29] The hardware of Space Invaders is incredibly similar to Gun Fight, including the use of the barrel shifter circuit.

[30][31] The hardware was also reused in subsequent Dave Nutting Associates-developed Midway games including Sea Wolf (1976) and 280 ZZZAP (1976).

In Taito's Space Invaders Part II of 1979, this circuit was replaced by a Fujitsu MB14241, a single-chip implementation of the barrel shifter introduced in Gun Fight.

[32] When Dave Nutting Associates developed the Bally Professional Arcade console, they included a built-in version of Gun Fight in the system's ROM.

In 1984, Epyx released Gun Fight bundled with another Midway game, Sea Wolf II, for Atari 8-bit computers as part of their Arcade Classics compilation.

[36] In 1995, GamesMaster host Dominik Diamond called Sega's arcade game Virtual On: Cyber Troopers "a futuristic version" of Gun Fight.