Sinnoh wasn't included in HG/SS, only Johto and Kanto.
you cant get to sinnoh in heart gold, but you can find the gym leaders from sinnoh.
You can't. Like the Original Gold and Silver, Only Johto and Kanto are explorable. However, with the aid of certain radio programs, you can lure out Pokemon from Hoenn and Sinnoh. You can also use the Pokewalker to get some Hoenn and Sinnoh Pokemon.
No
Yes,you can but you only get rare Pokemon from sinnoh and hoenn.
Because Platinum the region is Sinnoh, you can't get Charmander. On Heart Gold and Soul Silver, you can go to Johto and Kanto. But no Sinnoh for Platinum.
u can't u just can't having go to two regions in one game does not mean u can travel to any region
you get him by trading through any sinnoh game
he goes to sinnoh
no u can't
If you recall, HG is a remake of gold, which at the time, Sinnoh was not created yet, so the game wouldn't be a remake if they put in a whole other reigon. so, you don't go to sinnoh in HG orSS
Sorry, no. Only kanto and johto.
You need to trade one from Diamond, Pearl, or Platnium.