Game Guides, Cheats, Codes, Hints and Walkthroughs for Scooby-doo 2: Monsters Unleashed on GameBoy Adv..

All Levels
At the password section type (M,D,B,C,8,M,F,4) to get all levels.

Final Level
Enter code at the password screen:

5DBY3MT8: Final Level, Scooby V.S. Masked Guy

Level one complete
Go to the password section and type in “c, b, b, c, b, b, b, b”.