yes with relocater and poke transfer
No, you cannot migrate GBA Pokemon to Pokemon Black/White.
You can't. But you can migrate Pokemon from Pokemon Emerald to the Pal Park in Pokemon Diamond, Pearl, Platinum, HeartGold, or SoulSilver and transfer them into Pokemon Black.
First, you need to migrate your Pokemon in Sapphire to Pokemon Diamond, Pearl, Platinum, HeartGold, or SoulSilver. Then, you need to migrate those Pokemon to Pokemon Black.
Migrate from Pokemon Sapphire to Diamond then Diamond to Black/White
Yes. After you beat the main story, you can migrate from daimond, pearl, platinum, heartgold, and soulsilver versions to black and white
Pokemon Black and White are not compatible for trading with any of the other previous games.
No, you can only migrate when you get national PokeDex.
Yeahz, but you have to beat the game. Its on your way to White Forest/Black city.
No, because Chaos Black is not a real game. It is a hack.
No, the only way to get them is to migrate them from the 4th generation games.
yes but you have to get your pokedex upgraded and find a certain building on route 15
with a copy of diamond, pearl, platinum, heartgold and soulsilver make sure you have 6 Pokemon in the PC in those games and head to the pokeshifter in Pokemon black and white and you can migrate those 6 Pokemon from the games listed above, see serrebii.net for more details.