anywhere at any time. Jams last 60 seconds. Sets are used instead of periods, with the team winning the best 3 out of 5 sets winning the game – in Roller Derby, the winning team is normally determined by cumulative points scored in all periods. Another feature of what makes Roller Game unique compared to Roller derby is the equipment, for example, all players wear mandatory hockey padding for safety and protection in the game, and the jammer wears a solid white full-face motocross-style helmet not only for protection but to make him or her easy to identify from the blockers of both teams As the position of the jammer. Also, The skaters wear proper full body uniform jerseys and pants rather than the Typical roller derby t-shirts, tank tops, shorts, and leotards. Track Variations There are 2 Variations of tracks that Roller Game is played on: Flat battles: The standard track used in Roller Game that only utilizes a Skating rink with a flat surface (such as the RollerXskate Arena in Tokyo Dome City.) The said skating rink is converted into a 100-m oval track for the game. Banked battles: Roller Game is played on a traditional banked track setting. The Roller Game rules, scoring system, and gameplay are still used for this variation. Roller Game League Roller Game League was owned by R.G. Produce Japan, Ltd., a Tokyo-based company headed by , who, in 1973 at age 15 was a star skater for the original Tokyo Bombers of Roller Games. Koizumi's company manages skate parks and rinks, and since the mid-1980s has produced roller skating related events for television, theme parks, and musical theatre. Roller Game events began in 1990, when Koizumi organized the league's first two teams: the Murasaki Sports Cosmos and the Tokyo Bombers, the latter named in homage to the team with which he skated in the 1970s. Early star skaters included Mamoru Murakami of the Cosmos, Eiji Morita of the Lightning Jets, Takamasa Kazueda of the Delta Force, and Wataru Ueki of the Tokyo Bombers. Initially open to men only, Roller Game League now includes women as well. In 1993, Roller Game League hosted a male-only "World Cup" invitational in which an all-star team culled from various United States leagues competed against RGL all-stars. Teams Tokyo Bombers Murasaki Sports Cosmos Lightning Jets Delta Force Remix Yamato Rollergames: New Generation An exhibition game was held