* You might be thinking of a different Scooby Doo game for Wii. There are many Scooby Doo games for Wii, such as "Scooby Doo: Mystery Mayhem" (which is for the PS2, Xbox, and GameCube) and "Scooby Doo and the Spooky Swamp" (which is for the Wii).
* You might be remembering a game that has a similar name. There are plenty of Scooby Doo games that have "mystery" in their titles.
* It's possible you're thinking of a game for a different console. There are many Scooby Doo games across multiple platforms.
Could you tell me more about the game you're remembering? Maybe you recall some specific details about the gameplay, characters, or the story? This could help me pinpoint the correct game for you!