1.Have one of your Pokemon hold 1 masterball ( one can be found in team aquas base)
2.clone that Pokemon( instructions for that can be found on YouTube or here
3. theres all youre masterballs!!!!
action replay no other way to bad hahahahahahaNo, a game shark you IDIOT!!!!!!!!!
you can use a game shark to get unlimited master balls
$#@! no
You cant you only get one ( without action replay )
The GTS cloning glitch.
Give your Master Ball to a Pokemon to hold, then clone it in Emerald with the cloning glitch.
It is not possible to do the masterball cheat without a Gameshark or Action Replay on Ruby although it is on Emerald.
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
Get some kind of hacking thing?
you get unlimited master balls by using action replay and put on master balls x999
duplicate or you use action replay and write down the code