Scooby-Doo: Mystery Mayhem Cheats

Opening the bridge:
On level 2, to open the bridge there are four switches. Press switches 1, 2, and 4.

Mini-games:
Get the five hidden sandwich ingredients in a level to unlock a mini-game.

Trap The Fake Ghost mini-game mini-game: Collect the ingredients in level 1.
Monster Frenzy mini-game: Collect the ingredients in level 2.
Mine Cart mini-game: Collect the ingredients in level 3.
Trail Bike mini-game mini-game: Collect the ingredients in level 4.
Spooky Science mini-game: Collect the ingredients in level 5.