you can only get them with cheats
You can get one Master Ball in your GBA game and then migrate to Pokemon Pearl with a Pokemon holding the Master Ball.
It is not possible to make master balls in Pokemon Pearl version. You can get one from beating Cyrus or in the Game Corner.
depends what game you have, if diamond, Cyrus gives it to you(same in pearl).
You can either trade with someone who has a master ball or you can use a gameshark, there is only one master ball in a game
You can't unless you buy a game shark or an action replay
I do belive there won't be that kind of cheat, but a smart, but long way is to buy a Pokemon pearl, or diamond, then cheating on that game, then trading and having those Pokemon have master balls.
You cannot duplicate Master Balls in any Pokemon game.
No, You have to use an AR code to buy Master Balls on any game.
Master balls cannot be bought in any Pokemon game.
Getting master balls without cheating in Pokemon DP is very hard. The only ways are: to win the lottery in Jubilife City, or receive a Pokemon that has a master ball from trading. I have 2 master balls in my game. I traded with a person who had a Pokemon with a master ball.
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.
game shark or action replay