What are you trying to do?
Incase you didn't know there is no cheat code Action Replay for the DS yet, The action replay max duo only backs up saved games for the DS. There are saved games for Nintendogs that have everything unlocked and gives you a ton of money, But you will wind up loseing your current saved game.
Now if you did know all that allready and your wondering why the Action Replay Max Duo isn't seeing your game then the reason could be that you have a older Action Replay Max Duo. The first generation of Action Replay Max Duo have issues seeing some games if you have one of the early ones you won't be able to use it with games like Nintendogs, Animal Crossing and Mario Kart DS just to name a few.
There is a way to fix it, but it is risky and you could wind up with a dead Action Replay Max Duo.
Here is what you would need to do:
-Take the Action Replay unit apart (4 small screws).
-Solder together pins 4 and 5 of the DS socket
-Put the unit back together
here is a picture of how it should look in the end:
http://www.medaverse.com/Cap/ar_solder_credit_YS.jpg Also make sure you have the most recent firmware for our Action Replay too.
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