Scooby-Doo 2: Monsters Unleashed Cheats

Enter these codes in the Password screen.

Enter this code at the Password Screen

On the main screen, go down to "password" option.

After you beat the game, you will be asked for a code (you had to see the movie for the code)

The Credits can be found in the Option Menu, and the Mini Games Mode will appear in the Main Menu (in the place of the first Question Marks).