yes
Kanto and Johto.
No, you cannot get to the Hoenn region in Pokémon SoulSilver.
Johto
You can find Pokemon from the Heonn Region and after you beat the elite four and go to Professor Birch for your Pokedex update, you can find Pokemon from different regions in the earlier games.
To get a Pikachu in Pokemon SoulSilver, you must go to Viridian Forest, which is in the Kanto region.
Johto.
No
You can't.
No.
No u cant but u can go to Kanto , also get hoenn starters and kanto starters
there is not a new region its in johto
You can only go to Johto and Kanto in Pokemon Heartgold and Soulsilver
You cannot go to the Sinnoh region in "Pokémon HeartGold" and "Pokémon SoulSilver."