You put ruby in the same ds (not DSi or DSi XL) as heart gold, On HeartGold click on Migrate from Ruby (or sumin like tht) then you put all the Pokemon you want in the box and then save it. Turn your DS off then turn it back on, then go to fuchsia city in kanto go right to the top of it and you will get to a building with a orange top go in it talk to the man that's at the counter.
You can't migrate from HeartGold to Ruby. But it can be the opposite. Pokemon can be migrated from Pokemon Ruby to Pokemon HeartGold.
Sorry, you can't in Pokemon Heartgold. But you can in Emerald, Ruby, Saphire and crystal.
There is not a weather institute in Pokemon Heartgold, you are thinking of Pokemon ruby, sapphire, and emerald, there is not a weather institute in Pokemon heartgold.
Migrate from Pokemon ruby emerald Sapphire
you can migrate from ruby/sapphire or trade.
search near the grass before you go to foretree city or trade frome Pokemon emerald.
no but you can get it in crystal,gold,silver,heartgold and soulsilver
Pokemon Ruby, Sapphire, Emerald, SoulSilver, HeartGold.
you cant you have to transfer it from emerald,sapphire or ruby
you transfer one from Pal Park or Pokemon Sappire, Ruby or Emerald
Migrate from Emerald, sapphire, ruby, or trade with heartgold and soulsilver
you cant. you only can in emerald, sappire, and ruby