Ditto + Pokemon u want to use
you can't get the black flute in leaf green but you can in Pokemon ruby, sapphire and emerald then trade it to leaf green.
It is in the wild, anywhere. Whenever you change location (go into houses, etc) it will change place. You need to 'unlock' it before you can get it though.
first you have to own at least 60 pkmn, get pokedex from prof. oak,then talk to him; he will tell u to get ruby. fight team rocket and return to him.
A ruby is a ruby; a diamond is a diamond. They are different gemstones. Both occur in nature.
No they don't.
you can't :(
YOU CANT!
to make sure there was no trial.
luck
find a diamond and die it red
find a diamond and die it red
There isn't one. GTS was introduced in GenIV, Ruby is GenIII. You'll have to make do with face-to-face trades