Yes. There are two most common methods.
1. Have 2 games. Trade it over with a Pokemon
2. Hack
3. I don't know if this works, but try breeding a Pokemon that holds the Masterball.
4. no jizz
This wont work, but you could try having to Pokemon hold Masterballs and mate them. Hope it works!
You have to get a cheat
Once you have the masterball you get in leafgreen the only way to get another one is to have a firered or ruby or sapphire or emerald trade you a Pokemon that is holding a masterball.
no
you cant
there are two ways you can get a second master ball is to trade someone a Pokemon holding a masterball or by hakingIt is impossible unless you want to hack. Google search for "gameshark".
if you clone a masterball
The only way is to win the lottery in jubilife
You CAN'T make a masterball but you can win one at the Goldenrod Radio towerGo to Front desk. Main stuff is chance, hope, lots of pokemon (increases your chances) and then...YOU HAVE WON NUMBER ONE PRIZE MASTERBALL IF YOU ARE VERY LUCKY!!!!!
It isn't meant for any one pokemon. Most people use it on Mewtwo, which you probably should use it on. You can catch the legendary birds and Mewtwo without a Masterball but it can take a long time.
The only way you can get more than one masterball on Pokemon ruby/saphirre is you compeate in the Pokemon lottery corner. In Pokemon emerald you can have a Pokemon hold a masterball and then clone it.After you beat Team Rocket in the Silph Co. building, then the president at the top floor, after you beat Giovanni, will give the Masterball to you.
No, you can only get one masterball per game inless you have a hacking/cheating system.