This regular Subway is like any other subway, it is located and situated deep underneath the Earthrealm City on Earth. Featured in Mortal Kombat 3, players fought on one of the tracks, which seemed to be unoccupied throughout the match.
The route sign in the stage read BOON/TOBIAS (which were placed there as station names, as seen due to the sign changing to NORTH/SOUTH in Armageddon). As a Stage Fatality, the victim could be uppercutted through the roof, and then back down to the other side, where a passing train speeds into them.
Returning for Mortal Kombat: Armageddon, the fight is taken to the platform this time around. The arena receives visual changes such as dimmer lighting and promotional posters of Caged Rage stamped against the walls and a closed off entry, along the promotional posters of Lt. Sonya Blade as advertisement for the U.S. Special Forces with the motto "We want you". Players can knock one another against cans and benches as well as smash one into the ceiling. The Stage Fatality remains unchanged though now the gore can be seen. Also, now the train runs by from time to time, instead of only appearing when someone is knocked down onto the tracks.
It reappears in the Mortal Kombat (2011), where it again receives a visual upgrade. A large mural of the Netherrealm Studios logo adorns a wall, as does a Warner Bros. Games logo, an advertisement for Johnny Cage's movie Ninja Mime and a Special Forces poster. The stage fatality receives a re-imagining, also. The victor drags the opponent to the edge of the arena, holding their head in front of a passing train. The collision smashes the windows as it passes, smearing blood across the sides of the carriages as the head drags against the metal. The winner then tosses the loser across the arena to the other tracks, where another train runs the opponent over while the opponent is still airborne. Similar to past games, there is a sign that reads Boon St. and Beran Blvd., which is also seen in The Street. Also in MK 2011´s Story Mode, while still a location in one of Earthrealm's cities, The Subway is (likely) named Boon & Beran Station because it is located near The Street.
In Mortal Kombat 11, the Subway appears briefly in the game's Story Mode in a vision from Raiden where he battles Liu Kang in separate timelines, one of them taking place in the Subway. It later reappears as one of the many arenas in the Retrocade arena that appears on the monitors in the background.
- In Mortal Kombat 3, the station sign that reads BOON/TOBIAS is a reference to the co-creators of the Mortal Kombat, Ed Boon and John Tobias.
- In Mortal Kombat (2011), it was changed to Boon & Beran Station, the latter being a reference to Steve Beran, the lead art designer of Mortal Kombat.
- The theme for this arena was used in the second pilot animated short of South Park, "The Spirit of Christmas" during the fight between Jesus and Santa Claus.