You get a master ball from aqua hideout and you can win one from the lottory in Lilycove Department store on the first floor along with a few other thing.
u can get one in aqua layer
hamburbers
You can get it in the lottery if all the numbers match your pokemons ID
82005274 0001 yes
get and clone masterballs then do the stuff they tell you to and you should be good get and clone masterballs then do the stuff they tell you to and you should be good
You need a Action replay for gameboy.
One masterball is in Pokemon emerald. To find out more go to my site called www.miquel.ning.com
It's hidden in Team Aqua's hideout near Lilycove City.
you cant unless you use a action replay and cheat.
INFINITY MASTERBALLS just do my trick Trade pokemon for pokemon holding masterballs take them away and trade for your pokemon back
Personally, i do not know about emerald, BUT, I did with mu LeafGreen, and got like 99 masterballs from my brother's friend's replay.
Well, this is if you have Pokemon Emerald and LeafGreen AND you know how to duplicate in Emerald, then follow these steps. It'll take some time though. (You need a MasterBall in Emerald too.)1. In Emerald, make ANY Pokemon of yours HOLD a masterball.2. Then, duplicate that Pokemon the number of masterballs you want. (EX. I want 10 masterballs, so I duplicate it nine times. {remember, it's counting the one you already have})3. Take the masterballs from the multiple Pokemon.4. trade Pokemon that are holding masterballs to leafgreen.Sorry I didn't give you UNLIMITED but that's all I have. Oh and also, don't use ALL your masterballs, then you can't duplicate any more. So I hope this helped!!Materials:-two Pokemon games-two game consoles-trading cable