The following are known Code Breaker Codes for Scooby-Doo! Mystery Mayhem on Nintendo Game Boy Advance (GBA).

These codes are for the U.S. version of the game.

1. Master Code – Must Be On
   00007E29 000A
   10009B54 0007
2. Infinite Lives
   82012F40 0009

Do you know any additional codes for this game? Is there an error listed above? Let us know about it and we’ll update the list.
Code Indexes for Nintendo Game Boy Advance (GBA)

• Action Replay Code Index for Game Boy Advance
• Code Breaker Code Index for Game Boy Advance
• GameShark Code Index for Game Boy Advance

Other Content for Scooby-Doo! Mystery Mayhem

• Scooby-Doo! Mystery Mayhem Game Index
• Action Replay Codes [US]

Want a Code Breaker for Nintendo Game Boy Advance (GBA)? Click here to find it on Amazon!