Not that I am aware of! You can however use cheats to give you up to 99 master balls!
You cannot duplicate Master Balls in any Pokemon game.
Master balls cannot be bought in any Pokemon game.
you can only get them with cheats
You can cheat. Otherwise, you only get one Master Ball in any Pokemon game.
You only get one in the game (any Pokemon game). The only way you can get more is by cheats.
simplely get an action reply at any store and up date it
After you beat the game the option of the Pal Park is open and you can send Pokemon from GBA games to the Pal Pak. The Pokemon your sending should be holding the master ball when you send it. Be warned that Pokemon and master ball cant be transfered back.
No, You have to use an AR code to buy Master Balls on any game.
he will randomly give you any pokeball, excluding premier balls (buy 10 pokeballs to get one), cherishballs (balls containing Pokemon obtained at a special Nintendo event, a legendary mostly) and master balls (100% chance of catching ANY Pokemon. (only ONE in each game.))
Type the any Pokemon cheat
you can't you need to use an action replay code
you cant buy master balls in any Pokemon game so far. you only get one from prof. elm afta you have got all 8 johto badges