This page contains Cheats for Scooby-Doo: Mystery Mayhem organized by sections for Xbox. If you can't find a hint or secret in our list, then please check this page periodically for the latest updates.
- Developer: THQ
- Publisher: THQ
- Genre: Not Set
- Release Date: Mar 1, 2004
- ESRB: Everyone
Get the five hidden sandwich ingredients in a level to unlock a mini-game....From: Aimar
On level 2, to open the bridge there are four switches. Press switches 1, 2, and 4....From: jaymar
The safe which is in the bank has a three digit code. The code is "1-3-7". It can be found written on the blackboard in the schoolhouse....From: lampatha
You must turn on all the sprinklers, then use the Tomb Of Doom. Note: You will need full power....From: SpokenWisconsin
When you go in the elevator and go through into the room with the panel of green covering the door, go to the control box on the left. Press the first button once, the second button twice, the third button twice, and the fourth button once. You will be able to walk through....From: hdsetiawan
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How do i get the key to get out of the cemetery in level 2 (movie set)! i've been trapped for awhile! help....
Posted on: 11-16-2011