BA meaning in Sports ?

Battle Arena Toshinden (バトルアリーナ闘神伝, Batoru Arīna Tōshinden) is a weapons-based fighting game developed by Tamsoft and published by Takara and Sony Computer Entertainment in 1995-1996 for the PlayStation, Sega Saturn, Game Boy, and MS-DOS. It was one of the first fighting games to boast polygonal characters in a 3D environment, and features a sidestep maneuver which is credited for taking the genre into "true 3D." The Game Boy version of Battle Arena Toshiden despite sharing the same name as the console & PC counterparts is a different game. It is a 2D weapons based fighter and supports the Super Game Boy cartridge peripheral for the Super Nintendo Entertainment System/Super Famicom to allow the game to be played on a TV with colour palettes and borders.

The game was announced as a PlayStation exclusive, with Sony initially promoting it as a "Saturn killer" (against Sega's Virtua Fighter), but it was ported to the Saturn with additional features less than a year later. After fighting games like Tekken started emerging, Battle Arena Toshinden declined in popularity, but still spawned a series of sequels, starting with Battle Arena Toshinden 2. Battle Arena Toshinden was the first 3D weapons fighter, and was succeeded in spirit by Soul Edge and other games of the genre.