In a sci-fi future, a popular sport involves "pilots" who control HARs (human-assisted robots) in arena-based battles. Pilot abilities involve stamina, focus, and other intangibles, whereas HARs are differentiated by attacks and special moves. A fairly simple attack system uses four keys for left and right punches and kicks. You can use directional, evade, and jump keys in conjunction with regular attacks to create special and super attacks, which depend on energy status. Throws and counterattacks also are possible, but back attacks are not, which is especially unfortunate in multiplayer battles.
The 3D, interactive environments are good fun, although graphics and sound are only so-so. Controlling your robot via keyboard is difficult (one reason why PC fighters are so rare); a game controller works much better. Although the fighting system doesn't hit the mark completely, One Must Fall: Battlegrounds succeeds with a unique premise and balanced gameplay.
The goal is to free you, the player, from the restrictions of the past and allow you to fight the way you've always wanted to. Just like in your favorite martial-arts movies, you can go toe-to-toe with several opponents, use nearby objects as weapons, and integrate terrain and hazards into your fighting strategy.