Find an action replay code and program it, that's how you get many masterballs on Pokemon diamond action REPLAY. ;)
You get it with an action replay
yes there is
ACTION REPLAY
action replay is best
to get master balls..you must have a friend with action replay and trade you pokemons that will hold a master ball
You get one from Cyrus at the Vielstone building. or action replay
you cant unless u have the action replay
action replay. the makers of Pokemon wouldn't want you to get infinite master balls...you have to use an action replay
I dont think you can inless you have action replay. hope this helped
There are no cheats in Pokemon diamond, although you can buy action replay and get all of the cheats possible like: Every Pokemon,999 Master Balls ETC
To get more than one Master Ball, you must trade Pokemon that are holding them to your game.
Get the Pokemon modifier code from codejunkies.com. then go on Pokemon diamond and go to bag while holding L+R. In your item slot you will find 493 master balls. REMEMBER THIS NAME!! ULTIMATEGHOST44!!