you cant
You can't buy them
You can buy Game boy Advanced cheat games. You can then Click on the 999 Master balls cheat.
well i don't have ruby i have sapphire and i know it sucks but there is only one master ball in the whole game and that's in team aquas hide out
yes
From what I know, You can't BUY master balls in Pokemon.
You cannot BUY master balls. You only get 1 master ball in the game.
you have to get dexoys
Just one
Use a GameShark.
No, You have to use an AR code to buy Master Balls on any game.
You can get them from the lottory or Professer Elm but you can not buy master balls.
sorry, but that is not an actual game, ruby is a game, but i have no idea what ruby destiny is.