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! Unmasked it. Velma replies "Now that's what I call a "light" snack!" with the gang laughing, and another mystery solved. "Scooby-Doo! Unmasked" was met with average reception. GameRankings and Metacritic gave it a score of 64.50% and 62 out of 100 for the Xbox version; 66% and 64 out of 100 for the GameCube version; 65.96% and 61 out of 100 for the PlayStation 2 version; 61.60% and 48 out of 100 for the Game Boy Advance version; and 63.75% and 60 out of 100 for the DS version. Scooby-Doo! Unmasked Scooby-Doo! Unmasked is a video game based on Scooby-Doo. It