Your supposed to fill the complete pokedex. hoenn and national
You can't go to Johto in Pokemon FireRed or LeafGreen.
only in re-runs.
I would say either the Johoto Or Sinnoh Because they have really rare legendaries
You must Go 9999 times on the clock thing then go in a grass Nad then you will meet Totodile or Other Johoto Pokemons
After you find suicune throughout johoto then beat the elite 4 you will get a ticket to kanto.When you arrive in kanto you will have to locate suicune in kanto aswell (where suicune is i still dont know)but i do know that after it is tired from running you will have to go to route 25 (out side bills house north of cerulean city )
You can get it by transferring the Johoto starters via your Game Boy Advance to Pokemon Emerald
go on serebii.net (just type in Pokemon pearl pokedex) click on the one that says johoto
Finish mt battle only using two Pokemon never switching out or stopping you can save but you can't stop.
Usually when you have half of the pokedex filled he calls you and says "wow you have Pokemon not blah blah to johoto or kanto regions D:<
go to professor birch and you will be able to chose from chikorita, totodile, or cyndaquil a.k.a the three johoto starter pokemon.
You can't.
sadly no
You can the Pokemon from the johto region once you have the national pokedex. To get the national pokedex, catch 60 or more Pokemon from the kanto region then go and see prof. Oak in his lab in Pallet town.You can't.... But you can get johoto Pokemon in the game and from Pokemon colluseam.
You can't go to Johto in Pokemon FireRed or LeafGreen.
johoto or kanto regions
Blackthorn City in Johoto
you cant go to johto but you could catch johto Pokemon on sevvi islands