Scooby-Doo: Mystery Mayhem Cheats

Weird Wild West: Busting Freddy out of jail:
On the other side of main street from the jail where you have to bust Fred out, there will be a small alleyway. Have Scooby crawl underneath the fence to find the liquid soap, then go back to the side of the jail where the hole is blocked by the cart full of gold. Use the liquid soap, and it will slip right over.
User Cheat by LinkinRocks

Weird Wild West: Safe code:
The safe which is in the bank has a three digit code. The code is "1-3-5".

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