To get Johto starters, you have to use Emerald Version. You have to complete your Hoenn Dex (get all 200 pokemon) and you have to choose one of the three. Then (if you want them all) you restart the game and get them all again and choose a different one. sorry it's so hard!
Apparently you must finish the pokedex then talk to oak and he'll give you one. I'm not sure though and I haven't tried it so if you finish it and it doesn't happen, don't come runnin' to me...
in goldenrod city in johnto
you beat the last gym leader in johnto
it's the dragon cave.
there in the big biulding in johnto euratuk city
u don't go to johto in Pokemon platinum
In Johnto region by the 7th Gym when you surf.
no because the whole poke'dex is both national and johnto
Yes in the johnto go to the whirlpool islands to get a speal and evolve it
No. Professor Elm gives you one after beating all the Johnto Gyms.
Depends on the game in HG and SS beat the johnto elite four and go to the pokelethon
No, you are shown the credits but may then continue to explore kanto and now johnto