Yes, after beating the Elite Four, they will be roaming Kanto.
The oldest Pokemon games to feature Johto are Gold, Silver, and Crystal. FireRed and LeafGreen partially feature Johto after you beat the Elite Four. The newest games to feature Johto are HeartGold and SoulSilver.
use a cheat. its not in it
its in the johto region
no you can not go to johto reigon on Pokemon red the only game that i know that you can go to johto is gold,silverand crystal version
Numbers in Johto pokedex 246 Dratini 247 Dragonair 248 Dragonite That's it... Gyarados is actually water flying. (source The official Pokemon johto guid and johto pokedex, Pokemon Heartgold version soulsilver version Published in japan 2009 by media factory, inc.)
It's impossible. You can't. In FR/LG you can catch Johto Pokemon in the Sevii Islands, and trade from there.
You can only go to Johto and Kanto in Pokemon Heartgold and Soulsilver
NO! Pokemon SoulSilver Version is the exact same thing as Pokemon Silver Version. Only all the Kanto, Johto, Hoenn, and Sinnoh region Pokemon are in there.
There are 100 johto Pokemon in all.
It is in Goldenrod in Johto. Once you get to Kanto, there is one in Lavender Town.
You can't
Hoenn is not in heartgold version, only johto and kanto are in heartgold, hoenn is in emerald