As most any avid videogamer will tell you, licensed games suck. But here is a tour through the history of videogames starting with the Commodore 64 and ending with the PS3/XBOX-360.
Scooby and Scrappy - Commodore 64 (1986)
Scooby-Doo Mystery - SNES (1995)
Scooby-Doo Classic Creep Capers - Nintendo 64 (2000)
Scooby-Doo and the Cyber Chase - Multiple Consoles (2001)
Scooby-Doo Mystery Mayhem! - Gamecube (2004)
Scooby-Doo - Who's Watching Who? - Nintendo DS/PSP (2006)
Scooby-Doo - First Frights (2009)