You can't go to Johto in Pokemon FireRed or LeafGreen.
johoto or kanto regions
you cant go to johto but you could catch johto Pokemon on sevvi islands
You can't.
sadly no
go on serebii.net (just type in Pokemon pearl pokedex) click on the one that says johoto
complte the poke dex the go to the proffessor guy, i used the action replay
Blackthorn City in Johoto
You must Go 9999 times on the clock thing then go in a grass Nad then you will meet Totodile or Other Johoto Pokemons
chikorita - grass. cyndaquil - fire. totodile - water.
only in re-runs.
You can get it by transferring the Johoto starters via your Game Boy Advance to Pokemon Emerald