Scooby-Doo the head story editor on "Scooby-Doo" since 1983. Following the first season of "A Pup Named Scooby-Doo", Ruegger and much of his unit defected from Hanna-Barbera to Warner Bros. Animation to develop "Steven Spielberg Presents Tiny Toon Adventures" and later "Animaniacs", "Pinky and the Brain", and "Freakazoid!". From 1987 to 1988, Hanna-Barbera Productions produced "Hanna-Barbera Superstars 10", a series of syndicated TV movies featuring their most popular characters, including Yogi Bear, Huckleberry Hound, The Flintstones and The Jetsons. Scooby-Doo, Scrappy-Doo and Shaggy starred in three of these movies: "Scooby-Doo Meets the Boo Brothers" (1987), "Scooby-Doo and the Ghoul School" (1988),
Scooby-Doo "Scooby" theatrical and direct-to-video features. From 1990 to 2002, Shaggy and Scooby-Doo appeared as characters in the "Funtastic World of Hanna-Barbera" simulator ride at Universal Studios Florida. The ride was replaced in the early 2000s with a "Jimmy Neutron" attraction, and "The Funtastic World of Hanna-Barbera" instead became an attraction at several properties operated by Paramount Parks. Shaggy and Scooby-Doo are currently costumed characters at Universal Studios Florida, and can be seen driving the Mystery Machine around the park. In 2001, "Scooby-Doo in Stagefright", a live stage play based upon the series, began touring across the world. A follow-up, "Scooby-Doo