There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.
They are not in Pokemon HeartGold
No, but you can trade Pokemon only in HeartGold to Black
Technically,yes you can get Arceus in Pokemon Heartgold,but only by trading it to your Pokemon Heartgold game from Pokemon diamond,pearl or platinum.
yes at the place where you get zapdos
with a thunder stone
Electabuzz > trade with electrizer > Electivire
You can't there are some Pokemon that you can't get on leaf green for example LG can get Magmar FR you get Electbuzz
you migrate one over from Pokemon leaf green or fire red...
There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.
i would say electubuzz,magmar,riolu,pikachu,charmelion,watotle,or iyvasaur
They are not in Pokemon HeartGold
where is the pokemon transfer lab in heartgold
No, but you can trade Pokemon only in HeartGold to Black
That is impossible in Pokemon HeartGold and SoulSilver.