You can use the Poketransfer which allows you to transfer Event-Only Pokemon to Black and White. Here are some notes you may want to know before and during trading:
NOTE: Once a Pokemon is traded to Black or White, it can not be traded back, so choose wisely!
no, but use can use poketransfer from heartgold to white
No
No. If you wanted to, you could trade from HeartGold to Black and White, but not the other way around.
No, but you can trade Pokemon only in HeartGold to Black
You dont get Arceus in HeartGold. You need to trade one from another HeartGold or SoulSilver or trade one from the Sinnoh region games. WARNIG: IF YOU HAVE AN ARCEUS ON BLACK OR WHITE YOU CAN NOT TRADE IT BACK TO THE JOHTO OR SINNOH GAMES.
No but you can transfer from Leafgreen,Firered to HeartGold,SoulSilver then trade to Black,White!
you can trade pokemon from heartgold to black but you can only transfer the pokemon in heartgold not trade it from black
After beating the story and obtaining the National Pokedex. Go to Route 15 in Pokemon Black to the Pokemon Shifter Building. Connect a second DS running Heartgold. There you will be able to transfer up to 6 Pokemon from Heartgold to Black/White. Make sure the Pokemon transfering have no items and do not know HM moves(Cut, Surf, Flash, ect) You can not trade or transfer from Black/White back to Heartgold.
yes. you can trade Pokemon from diamond, pearl, or platinum to heartgold or soulsilver.
trade pokemon
you can trade Pokemon from heartgold and soulsilver to your diamond,pearl, or platinum.
As far as I know, Pokemon on Pokemon Black and White have to stay on those games, as for Pokemon HeartGold and SoulSilver, you can not only migrate Pokemon from earlier generations of games, you can also trade with Pokemon Platinum and Diamond and Pearl. Still, the Pokemon on Pokemon Black and White look cooler! :)