[OOC] Unregulated Communications
OK, Rollerball is a thing...
In the UDF it is played much like the first game in the 1975 film. Rough but regulated with rules.
On the frontier between UDF and Empire, where there are more independent systems like Akir things are closer to the style of the game early in the 2001 film. Showy, with pyro and professional characters that are very flamboyant.
In the Empire it is pure bloodsport - bread and circuses for the masses. There are a few pros but most are conscripted into the games. Sometimes prisoners are offered the chance at freedom if they play well enough.