Terminator 2: Judgment Day was released in 1991 as an Arcade game and later ported to many home consoles, the game had the player(s) shoot their way through Skynet's arsenal of robot armies and advanced weaponry as an on-rails first-person shooter. The Arcade cabinet included a firearm controller, though home versions did not have their own separate light-gun controllers (however, the SNES Super Scope/Mouse and the Sega Genesis Menacer are compatible with their respective versions).
The home versions were released as T2: The Arcade Game (sometimes Terminator 2: The Arcade Game). This version was released on the Amiga, SNES, Game Boy, Sega Mega Drive/Genesis, Sega Master System, and Sega Game Gear, each with varying levels of graphical fidelity to the original Arcade game but all playing more or less the same.
Neither the Arcade game nor its home ports are to be confused with the side-scroller action game Terminator 2: Judgment Day, which had different developer teams and gameplay.