First get national dex(see all sino pokemon)

Next fly to pal park.Have gba in slot.

Save game and turn off.make sure u have the 6 pokemon in pc.they cant have a hm as a move

Turn on ds. go to where u select continu game.DO NOT CLICK ANYTHING!!!

go done til u see migrate.click` pick the pokemon u want.click migrate

exit.click continu. talk to the guy at the counter start catching pokemon.