How do you open the hidden door in Mossdeep?
Is there something special in there?
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You need an e-reader to unlock the door. The last trainer is in there.
I don't know what's in there I think it's a trainer but to unlock it you need an Action Replay. Sorry if you haven't got one.
Connect your game to an E-Reader, activate Mystery Events mode, and swipe the Battle Card that you got with your game through the E-Reader, the dialog box on the game should read 'A new trainer has arrived in Hoenn.'. Go back to the house and talk to the owner, who is standing in front of the door. Say yes to have the door open to reveal the Trainer on your Battle Card.
Get an E-reader and swipe a battle card through. Talk to the man and the door will open.
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