Tyranitar
Number 75 in the Heart Gold pokedex is Politoed ^_^
There are Johto Pokemon. For the Pokedex, Screenshots, and other previews, go to Serebii.net, and click on Heart Gold/Soul Silver.
Johto Region
Johto and kanto
johto and kanto
The only way you can get to the Johto region is by playing Heart Gold, Soul Silver, Gold, Silver, and Crystal.
Get all 8 johto badges, beat the Pokemon league, then return to New Bark Town and Oak will be there. He will then upgrade your pokedex.
The johto Pokemon from FireRed, LeafGreen, and Emerald can be migrated to the DS. but the older games such as silver and gold do not fit in the DS.
johto national park
There're 156. National Pokédex nos. 494 to 649.
Kanto and Johto.
heart gold, soul silver, silver, crystal and gold