An action replay code. I don't know what code it is though, sorry. but what I DO know is that when you get all 8 gym badges in the johto regein, you get a master ball from the professor.
with action replay you can get 999 master balls
Well you can get a action replay code and use it to get 999 Master Balls
1
impossible you can't do it
CHEAT
Only one.
you cant there is only one
You get a master ball after defeating the eighth gym. You'll receive it from prof. Elm.
Using Hacks or just One given to you.
If you get lucky on the daily lottery corner
how to get to blackthorn town on heart gold
you need a ar ar means action replay