go to the Pokemon center (sunyshore city) go on the PC and click someones PC while pressing L and R button.
Chat with our AI personalities
You cannot duplicate master balls. You only get one handed to you. That is all you will receive.
You can't have unlimited master balls although u can give the master ball to a Pokemon and duplicate it at battle frontier
action replay (cheats)
You can buy them, at the Pokemon leuge thjey have evry kind of ball except master and cherish balls
there isn't one. there's only one for diamond and pearl. there is a calculator app one for only platinum though.