experimented with color overlays on some of their games. In Star Castle, the overlay gave color to several elements of the game with fixed positions. In Armor Attack, the overlay was itself a part of the game: the overlay was a top-down view of a small set of city streets, and the player drove a jeep through the streets fighting tanks and helicopters. Cinematronics created Cosmic Chasm, a color vector game. Other games were developed based on the same hardware system (based on Motorola's 68000 chip) but were never released, including a 3D color vector game. Non-vector games About 1982, Cinematronics started releasing games which used raster display, such as Naughty Boy and Zzyzzyxx. During this time Cinematronics filed for Chapter 11 bankruptcy protection. In 1983 Cinematronics released Dragon's Lair, one of the first laserdisc-based arcade games. In order to finish the project they partnered with Advanced Microcomputer Systems (later renamed RDI Video Systems), who later tried to sell a home version of the laser-disc machine. While RDI's home console, the Halcyon, was a failure, the Dragon's Lair arcade was a huge success. Cinematronics followed it up with the similar sci-fi-themed laserdisc game, Space Ace. In about 1983 some prototype animation material for a Dragon's Lair sequel was produced, but due to the lack of an agreement between Cinematronics and the animator, Don Bluth, this material sat unused for years, eventually becoming part of the Dragon's Lair II: Time Warp game in the 1990s. About 1984, Cinematronics released Express Delivery and other raster games based on a new hardware platform called the Cinemat System, which was designed to be reusable with replaceable software, control panels, and cabinet artwork. About 1987, Cinematronics was acquired by Tradewest and renamed the Leland Corporation and continued to make arcade and computer game software. Tradewest was bought out by WMS in 1994 to become their console division. Games Early Flipper Ball (1976) Embargo (1977) Vector Space Wars (1977) Tail Gunner (1979) Starhawk (1979) Sundance (1979) Warrior (1979) Armor Attack (1980) Rip Off (1980). A cocktail version was manufactured under license by Centuri. Star Castle (1980) Tail Gunner II (1980). This is a cockpit version of the original made under license by Exidy. Boxing Bugs (1981) Solar Quest (1981) Cosmic Chasm (1983) LaserDisc Dragon's Lair (1983) Space Ace (1984) Thayer's Quest (1984) Raster Freeze (1982) Jack the Giantkiller (1982) Naughty Boy (1982) Zzyzzyxx (1982) Brix (1983).