You only get one master ball from professor elm.
you cant
there is only one master ball that you get in firered
cyrus gives it to you
Find them or u get a action replay
well you should have 493 master balls so find the number of Pokemon that you want, make the master balls show that number and presto you find that Pokemon in the wild
You need action replay which you can find at game stop. then you scroll down and find more master balls. I don't have the code though, sorry but there is one of the wiki answers where it tells you the code. it's how do you get 98 master balls? I hope it helped!
Get an action replay
you find it in the team aqua hideout
In skyrim
You cannot duplicate master balls.
you get the master ball after beating cirus and others
no but you can get to HQ and battle team galactic boss and he will give you the master ball