No Sinnoh Pokemon can be found in HeartGold or SoulSilver, but you can choose just one of the Hoenn Pokemon after doing certain things (either Torchic, Mudkip, or Treecko).
Pokemon HeartGold Will Have Sinnoh,Kanto,But Hoenn Least Likely.
You have to beat the Pokemon league in Hoenn, Kanto and Johto. In Sinnoh, there might be some trainers who have Torterra.
You can't get to the Hoenn region in HeartGold or SoulSilver. However, Latias can be caught in HeartGold, which is a legendary from Hoenn.
unfortunately, you can't
You can only go to Johto and Kanto in Pokemon Heartgold and Soulsilver
Duskull is a Sinnoh pokemon as in pokemon platinum you get darkrai which is the evolution of duskull.
Pokemon Heartgold/Soulsilver, Pokemon Sexy Tush
No, it is not possible to access the Hoenn region in either SoulSilver or HeartGold. However, you can catch Pokemon from Hoenn. On Wednesday, the Pokemon march station is a Hoenn sound. To get the Hoenn Pokemon all you have to do is set your Pokegear radio onto the Pokemon march station on Wednesday after you have defeated Red.
You can only catch Pokemon from the original Kanto and Johto unless you link trade from one of the Hoenn games eg: Emerald, Ruby, or Sapphire to one of the Sinnoh games and then trade to Either HeartGold or SoulSilver.
you can't go to hoenn in Pokemon heartgold/soulsiver...
well heartgold and soulsilver takes place in the kanto and johto regions, so obviously the pokemon from those regions are there, though probably not in the same place as the original games. there is also hoenn region and sinnoh region pokemon in this game, but in order to get those you have to listen to a certain type of musice on the radio on a certain day in the game. for more help on where to find hoenn and sinnoh region pokemon in these games, you should really go to seribii.net
as far as i know you can not get to the hoenn region in soulsilver/heartgold sorry to disappoint. also I looked around the web and they said you cant get to hoenn