Tron was a Disney movie that was released in 1982. It was one of the earliest feature films to reflect the video-game craze of the 1980s. Jeff Bridges stars as a computer programmer who becomes part of the very game that he\'s programming. The game is a \"light cycle duel\". Your light cycle races across the arena leaving a trail of laser light behind you. Light cycles can only make 90 degree turns. Touching a laser trail destroys a light cycle, so you try to drive your opponents into a light trail while avoiding the trails yourself. There are examples of the tron game at intelligentedu.com and http://www.fltron.com/.