i think that if you still have your first master ball you can make another by breeding a Pokemon holding the ball. or you can somhow win the jubilife lottery. otherwise you need an action replay ds.
Use gameshark codes.
either clone master balls or throw loads of ultra balls at it i tried and it only took about 20 ultra balls
loads get loads of master balls them just click on Pokemon locator , locate your Pokemon and then click on a ROOM. Finally catch the Pokemon.
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...