Scooby-Doo the series and the billing, in an attempt to boost "Scooby-Doo"s slipping ratings. The 1979–80 episodes, aired under the new title "Scooby-Doo and Scrappy-Doo" as an independent half-hour show, succeeded in regenerating interest in the show. Lennie Weinrib voiced Scrappy in the 1979–80 episodes, with Don Messick assuming the role thereafter. Marla Frumkin replaced Pat Stevens as the voice of Velma mid-season. As a result of "Scooby-Doo and Scrappy-Doo's" success, the entire show was overhauled in 1980 to focus more upon Scrappy-Doo. At this time, Scooby-Doo started to walk and run anthropomorphically on two feet more often, rather than on
Scooby-Doo and the Cyber Chase Bill being at the college two years longer, and he felt more deserving to win the prize money at the university's science fair. Kaufman then protests that students alike are all equal. Bill was the one who beamed the gang into the game, as he feared they would find out that he created the virus. The gang and Eric play the new Scooby-Doo game, during which Scooby interacts with the gang's virtual counterparts once again by feeding Cyber-Scooby some Scooby Snax. The post-credits scene includes the gang telling what their favorite parts of the movie are. "Scooby-Doo and the Cyber