How do you get more master balls in Pokemon ruby without cheating?

Answer 1

One way is to play the lottery at the Lilycove Department Store. You will be more likely to win if you trade Pokemon with a lot of different game cartridges (different ID numbers). You need to have a Pokemon with the exact ID number as the one drawn in the lottery to get a Master Ball. You can play the lottery once per day.

Another way, if you have another game cartridge, is to start a new game on it, get up to the point where you get the master ball, make a Pokemon hold the master ball, and trade for the Pokemon with your first game. Repeat for each additional Master Ball you want.

A third way, if you have access to a Pokemon Emerald cartridge that has beaten the game and not used the Master Ball, is to clone it. Google "Pokemon emerald cloning glitch". This method requires no cheating devices, but exploits a glitch and is considered cheating by some people. If you are one of them, do not use this method. You can trade the cloned master balls to your Ruby cartridge by making Pokemon hold them.