>>30817773Kind of annoying
The only point you are able to transfer pokemon is from Gen 3
Gen 3 to 4 you use a DS and have the Gen 3 game inserted into the DS at the bottom slot and the Gen 4 game inserted into the top slot on the DS. You need to have the National Dex in Gen 4 (Seen every pokemon) To do the transfer, then go to pal park
Gen 4 to 5 you need to DS's (Two 3ds's or 1 DS and 1 3ds also work) You go to the poke transfer lab after you beat the game (I think you might need something else not 100% sure though, Gen 5 is a bit fuzzy to me) and on the DS with the Gen 4 game inserted go to DS download play after you talk to the tranfer girl in the poke transfer lab in Gen 5 on your other DS
Gen 5 to 6 download pokebank on the 3ds and in it the app will let you download poke transfer which will let you transfer any pokemon in a Gen 5 game into the poke bank which then can be transferred to Gen 6
Gen 6 onwards (from the looks of it) Pokebank