You can only get one, and you get it when you defeat Giovanni in the Silph Co. Tower in the middle of Saffron City. The only way to get multiple is by cheating.
there is only one master ball that you get in firered
i masterball
You can't.
no
You can't!you have to cheat
use a game shark
yes, all you have to do is give it to your Pokemon and clone it.
cloning glitches
Master ball is with the silph co. chairman talk to him after defeating Giovanni
first, you have to choose charmander as your starter pokemon and get some ultra and master balls
You can't.
Cheat but to get more master balls you can get some from other games all you do is make a Pokemon hold the master ball and trade it to firered and boom you get another masterball.