its in team aquas hideout in lilycove, there are 4 pokeballs on the floor. 2 electrodes, a master ball, and something useless.
You can buy them at Verdanturf Town.
No, you cannot get a Master Ball from the newspaper guy in Solaceon Town. The newspaper guy will give you a Scope Lens instead.
I think you get it at the Poke mart in the town with DEVON corporation.
In Lavender town's mart.
After beating the Elite Four, return to New Bark Town and talk to Prof. Elm. He will give you a Master Ball. *Remember this is the only Master Ball you will get in the whole game!*
go to the eight town and use master ball
you cant get infinate master balls but you can dupicate them and dont tell me how to duplicate i cant be stuffed to speak go through the game with out your master ball or trade one and after you beat the elet four go to the battle frontier and go to the battle town then use the cloning glitch.
once you have the 8th badge you will be able to get it
You find him when you have beat the Pokemon league.You have to go to the weather instute near fortree town and talk to the man at the laptop on the top floor.Then you go to meteor falls but the weather has change and it does not look like meteor falls and groundon is there. I advise you to use a master ball that can be found at team aquas hideout.
you can only get timer balls on rustboro city pokemart on emerald
go to the tunnel next to lavaridge town and use the strenght hm to move the boulders and go south to find a poke ball with a fire stone
From the professer in main story at plane town