you cant unless you have two aipoms and a master ball. give a master ball to an aipom they have to be male and female. not male male or female female. then give the aipoms to day care center. next wait for an egg. lastly hatch the egg and if it is a may pick up items type Pokemon then you willhave a master ball. if it doesn't show up with an item try again.
Your only chance of getting tons of Master Balls on Pokemon Sapphire is if you keep winning the Lottery Ticket in Lilycove.
Use action replay. Note: Dont use it
cheating
Technically there's infinite master balls because you can win one from the lottery in lilycove city in the dept store.
you cant get sapphire master balls i thinck
Master balls cannot be bought in any Pokemon game.
cheater
with cheat code.
there isn't you can only make a lot of them not infinite
kaleb's cheating device.
you can't
cheat code to get infinite master balls fire red gameboy advance
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