No, there's no Master Ball available at Pokemon Centers.
You can copy a master ball on Pokemon Emerald by having one of your friends that has one sign on to their ds and connect the two. Then they can give it to you in the Pokemon center.
Yes, if you have a Pokemon hold a Master Ball and then trade the Pokemon, you will have transfered the Master Ball.
I think you need a ditto and another Pokemon then give the other Pokemon a master ball then put ditto and the other Pokemon in the daycare center and then take a walk somewhere away from the daycare center and then go back there should be an egg that egg should be the other Pokemon that you put in the daycare and when it hatches it will be holding a master ball. WARNING:THIS MIGHT NOT WORK BUT MY FRIEND TOLD ME IT WORKS
to get a 2nd master ball trade with 50 diffrent people and go see a man in black in the castela pokemon center
trade a friend a pokemon and his pokemon holding a master ball
where do you get the second master ball in Pokemon pearl
Catch him with the second master ball you get from the guy at the pokemon center at the top after you have traded 50 times
no it won't be holding a master ball cos when you used the master ball to catch a certain Pokemon, the master ball will be gone in your inventory because it is a consumable.
after you defeat the boss of team aqua and they take you to the top of the ocean and you are on the ring of land you surf to the center and dive there will be a rock and that rock has a master ball on it
No, you don't get it back.
Yes, you can get a master ball in Pokemon black. You get the master ball towards your last gym battle from Prof. Juniper =)
You can get one Master Ball in your GBA game and then migrate to Pokemon Pearl with a Pokemon holding the Master Ball.