You can't unless you buy a game shark or an action replay
You cant.You can only get 2 master balls.
You can't have unlimited master balls although u can give the master ball to a Pokemon and duplicate it at battle frontier
you get unlimited master balls by using action replay and put on master balls x999
You can't.
cheats
more like 493 master balls. its a cheat on the AR look up the code for it. its called Pokemon modifier. you can keep refilling it though.
You can't!you have to cheat
There probably is one but cheaters never prosper
Master balls are the best kind of Pokeballs you can get on the game Pokemon. The cheat for unlimited master balls is to use the Missing No glitch.
with cheat code.
you can't.
Clone your Pokemon and give them the master ball