The Johto region represents the second generation of Pokémon, and despite all the new features and the Kansai-like setting, the core mechanic of version exclusives remains. That means there are Pokémon unique to HeartGold that you cannot get in SoulSilver, and vice versa. If you’ve gotta catch ’em all, you will need to trade with someone.
Here is a list of all version exclusives available in Pokémon HeartGold and Pokémon SoulSilver.
Pokémon HeartGold Version Exclusives
| Pokémon | Icon |
| Arcanine |  |
| Ariados |  |
| Baltoy |  |
| Claydol |  |
| Donphan |  |
| Gligar |  |
| Gliscor |  |
| Growlithe |  |
| Kyogre |  |
| Mankey |  |
| Mantine |  |
| Phanpy |  |
| Primeape |  |
| Sableye |  |
| Spinarak |  |
Pokémon SoulSilver Version Exclusives
| Pokémon | Icon |
| Delibird |  |
| Groudon |  |
| Gulpin |  |
| Ledian |  |
| Ledyba |  |
| Mawile |  |
| Meowth |  |
| Ninetales |  |
| Persian |  |
| Skarmory |  |
| Swalot |  |
| Teddiursa |  |
| Ursaring |  |
| Vulpix |  |
Pokémon HeartGold and Pokémon SoulSilver are remakes of Pokémon Gold and Pokémon Silver and were initially released in 2009 for the Nintendo DS.