Of course you woudn't lose your Pokemon after entering a new region. The gym leaders have stronger leveled Pokemon making them harder to beat. So the answer is definetly NO.
Unfortunately there are absolutely no Pokemon contests in Heart Gold aside from the PokeAthalon.
no
you cant even get to the shino region
heart gold, soul silver, and crystal(old)
go south of lavender town in the kanto region and then enter the house and then talk to the man inside. (works for heart gold too) by mattew
It's Darkrai. You can't get him in Heart Gold.
Pokemon Heart gold is different from Pokemon Gold cuz heart gold has better graphics new Pokemon and new events
On route 12 in the kanto region somebody gives it to you
You can get a Venomoth at Route 24 or Route 25 in the Kanto region.
Pokemon Gold and Silver are both located in the Johto region.
the pokemon gym is actually in seafoam islands, just surf to the right and enter the cave
If you're in the Johto region, then you need to fly to either the Pokemon League or Victory Road to be able to view or fly to the Kanto region.