There are 2 regions in Pokemon Soul Silver and Heart Gold. There IS the Johto Region which is your Home Region and there is the Kanto Region that's where you can go when you finish the Pokemon league and obtaining the National Pokedex from proffecor elm or oak. Im not sure, you get it from one of them.
Hope I helped
Pokemon Freak1
only 2
2. The Johto and the Kanto.
The two regions in Pokemon Soulsilver are Johto, the region you start out in, and Kanto, the one you go to afterwards.
Johto and Kanto
You cannot get to the Hoenn region in Pokémon SoulSilver, the only regions that are available in SoulSilver are Johto and Kanto regions.
Johto Kanto (from Pokemon LG&FR)
you can't. Pokemon heartgold and soulsilver versions only have two regions: johto and kanto.
You cannot go to the Sinnoh region on Pokemon SoulSilver. You can only go between the Johto and Kanto regions. No other regions can be accessed in SoulSilver.
Not all Pokemon regions are available on all games. SoulSilver only has access to Kanto and Johto.
No, sorry.
no only in heartgold and soulsilver versions
You cannot go underground as you were able to in Pokemon Diamond and Pearl. You are stuck above ground in Pokemon SoulSilver. You get two regions to go between, though.