For Nosepass to evolve into a Probopass, it needs to level at Mt. Conoret, so you can't evolve them in HeartGold/SoulSilver, you'll have to trade it to Pearl/Diamond/Platinum.
Pokemon soulsilver/heartgold versions now but in February black/white
Yes, also in heartgold, soulsilver and other versions as well.
Gold, Silver, Crystal, HeartGold, and SoulSilver Versions. They all have 16 gyms (two regions).
The only way to get a Premier Ball in HeartGold or SoulSilver Versions is to trade a Pokemon holding one or by buying 10 or more Poke Balls at a PokeMart.
In HeartGold and SoulSilver Versions, Smeargle can be found outside the Ruins of Alph (level 20-22) or at the Safari Zone (Plains zone during Morning or Day).
The Underground is unavailable in HeartGold and SoulSilver versions
Darkrai cannot be caught or encountered in HeartGold or SoulSilver Versions.
Pokémon HeartGold and SoulSilver versions released on September 12, 2009 in Japan.
Yes. It can trade with other soulsilver versions, heartgold, platinum, diamond and pearl.
HeartGold and SoulSilver are DS remakes of Gameboy versions Gold and Silver.
no only in heartgold and soulsilver versions
you can't. Pokemon heartgold and soulsilver versions only have two regions: johto and kanto.
Pokemon soulsilver and Pokemon heartgold are basically the same game just different versions but i do recommend buying Pokemon soulsilver
Level 15 in Heartgold and Soulsilver. It might be different in other versions
groudon in soulsilver at embeded tower and kyogre in heartgold in the same place
unlocks night skys edge on the pokewalker
Pokemon soulsilver/heartgold versions now but in February black/white