yes there is
You get it with an action replay
Find an action replay code and program it, that's how you get many masterballs on Pokemon diamond action REPLAY. ;)
action replay. the makers of Pokemon wouldn't want you to get infinite master balls...you have to use an action replay
get an action replay
action replay is best
i suggest action replay or win the lottery
ACTION REPLAY
You get one from Cyrus at the Vielstone building. or action replay
you cant unless u have the action replay
yes. its master ball cheat
no, but if you have an action replay you can get as many as you want
hold ''Y'' while pressing the [{(#@! & THE #*^)}] button