Tron consists of four sub-games based on events and characters in the movie. In general, the player controls Tron, either in human form or piloting a vehicle, using an eight-way joystick for movement, a trigger button on the stick to fire (or slow down the player’s light cycle), and a rotary dial for aiming. The goal of the game is to score points and advance through the game’s twelve levels by completing each of the sub-games. Most of the 12 levels are named after programming languages: RPG, COBOL, BASIC, FORTRAN, SNOBOL, PL1, PASCAL, ALGOL, ASSEMBLY, OS, JCL, USER. The game supports two players alternating.