The North American release dates were September 12, 2005 for GameCube, PlayStation 2, and Xbox, and then joined by a Nintendo DS release on October 18, 2005. For PAL regions, it was released on Xbox on September 16, 2005, on GameCube, and PlayStation 2 on September 23, 2005, and lastly, on the DS on November 11, 2005.
Mystery Inc. are on their way to see Fred's cousin, Jed, only to discover he is gone and the prime suspect in stealing from the company he works for. But finding Jed's whereabouts is only half the mystery in a plot that unravels someone's master scheme of revenge.
- Monstrous Fright and Magic for DS/GC/PS2/Xbox and GBA
- Shuddery Showdown in Chinatown for DS/GC/PS2/Xbox and GBA
- Rockin' Roller Coaster Terror for DS/GC/PS2/Xbox and Rockin Roller Coaster of Terror for GBA
- Harum Scare'em at the Museum for DS/GC/PS2/Xbox and Harum Scarum at the Museum for GBA
- Back to Monstrous Fright and Magic for DS/GC/PS2/Xbox (levels 4 and 5 of the GBA version are combined)
This applies to the home video console platforms.
- Scott Innes as Scooby-Doo and Shaggy Rogers
- Frank Welker as Fred Jones and Professor Stoker
- Grey DeLisle as Daphne Blake and Marcy
- Mindy Cohn as Velma Dinkley
- Adam West as Winslow Stanton
- Chris Edgerly as Jed Jones, Alvin Wiener, Guitar Ghoul, Juggling Clown, Pterodactyl Ghost, 10,000 Volt Ghost, and ninja
- Kim Mai Guest as Maggie Xi, Nikki Starlight, Kung-Fu Maiden, and Fire-Breathing Groupie
- Fred Tatasciore as Ho Fong, Joe Grimm, Zen Tuo, Caveman, Black Knight, Circus Strongman, and Chinese Zombie
- Suzanne Blakeslee as Dame Nella Vivante
Scooby uses different costumes to gain new abilities. The following costumes include:
- Kung Fu: allows Scooby to use martial arts. In the PS2/GC/Xbox version, Scooby can charge up for a Mega Strike. In the GBA/DS version, he can break or move items with the yin yang symbol on it.
- Ninja: upgraded version of Kung Fu. Scooby can perform a powerful ground pound while in midair.
- Bat: this costume gives Scooby the ability to glide in midair. He can also use fans to float upwards.
- Vampire bat: upgraded version of Bat. This costume allows Scooby to glide farther and faster than before.
- Robin Hood/Archer: Scooby can shoot plungers using his bow. He can fire at targets and enemies. In the GBA/DS version, he shoot plungers at walls to climb up them. However, in the GBA version, Scooby cannot spin attack.
- Sharpshooter (upgraded version of Robin Hood): Scooby can shoot three plungers at once.
- Scientist: exclusive to DS version. Scooby can dissolve mubber cubes and walls by playing a puzzle minigame. Scooby cannot double jump in this costume.
- The Beast of Bottomless Lake also appeared in the game.
- Explore massive levels including the Harum Scare'em Museum, the Haunted Rockin' Roller Coaster, and get ready for a Shuddery Showdown in Chinatown.
- Collect and wear costumes that give Scooby special abilities such as a Kung Fu Scooby, Bat Scooby, and Robin Hood Scooby.
- Features the voice of Batman's Adam West and the Scooby-Doo cartoon voice actors.
- All-new game engine featuring contour shading that makes the game look just like the cartoons.