U need to beat the team galactic boss in the HQ after u beat him he gives u one.
go to lilycove and go to team aqua's hideout and then go to boss room you can only get one
another way is to go to lilycove department store and play lottery
You cannot duplicate master balls.
you cant measure out ultra balls to equal master balls. master balls are just a lot better.
You cannot BUY master balls. You only get 1 master ball in the game.
From what I know, You can't BUY master balls in Pokemon.
with action replay you can get 999 master balls
well the max of master balls you can get is 999 but you can only get more master balls in trades.
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.
you have to get master balls from professor roan
There isn't a way to get master balls with cheating...
You can get 2 Master Balls in both versions.
Have your friends trade you the master balls they got.
You cant.You can only get 2 master balls.