You can find all the action replay codes for Pokemon Diamond here: http://us.codejunkies.com/codes_show.asp?rf=0&c=US&cr=USD&cs=$&r=0&l=1&g=17826135&p=17
Hopefully the code you're looking for is in there
action replay is best
there is no action replay code for park balls (pokemon masta rulez!)
Just go on google and look up 999 master balls cheat.
action replay (cheats)
you need action replay 4 that
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. ;)
yes there is
action replay. the makers of Pokemon wouldn't want you to get infinite master balls...you have to use an action replay
ACTION REPLAY
action replay is best
there is no action replay code for park balls (pokemon masta rulez!)
You get one from Cyrus at the Vielstone building. or action replay
you cant unless u have the 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 master balls..you must have a friend with action replay and trade you pokemons that will hold a master ball