You can't TRADE pokemon between DS games and GBA games. However, if you beat the pokemon league and take the water path south of Sandgem town that continues east, you will reach a place bcalled Pal PArk, in which you can catch pokemon that you migrated from a GBA game (in this case, leafgreen). To do this, put Diamond and leafgreen in you ds at once (leafgreen in the GBA slot and Diamond in the DS slot). Turn on the DS and boot up the Diamond game (it works with Platinum and Pearl too). When you reach the title menu, it will display your profile, the new game option, and the "migrate from Leafgreen" option. Choose this and you will be able to access the PC on the Leafgreen Game. Select the pokemon you wish to migrate (you cannot migrate pokemon that know HM moves, so delete the moves in Fuchsia city. Also keep in mind that the Pokemon's Item will be moved to the Diamond game, too)). After it has saved data on both cartridges, the game will reboot, and you will have to go to the Diamond game, go to pal park and catch the Pokemon that you migrated (don't worry the balls they give you will catch anything without fail) but keep in mind that you cannot return or send any Pokemon from the Diamond game to the Leaf-green game, so think carefully (unless you plan to sell or restart the leaf-green game)
Yes All You Have To Do Is Get The National Dex And Go To Pal Park I Don't Remember The Directions Though
To trade Pokemon from leaf green to diamond, you have to see every Pokemon in diamond then you go to professor rowan and get the national pokedex. then insert the leaf green game and turn off then turn on your ds and on the diamond menu select migrate from leaf green. it will say (on the touch screen) "migrate Pokemon from [name's] leaf green game". say yes and then say yes again ad select Pokemon to migrate. then when you select 6th Pokemon the screen will say migrate these Pokemon. say yes and the Pokemon will be migrated. To get them in diamond, go to pal park and catch them then when you finish, select put in box. look in the PC. they will be there.
go to game stop and ask them
No, you cannot trade Pokémon from Pokémon Diamond over to Pokémon LeafGreen.
you cant trade Pokemon diamond pearl with leaf green. You can only do that if you trade Pokemon from leaf green to diamond pearl.
trade from heartgold, soulsilver, firered, and leafgreen
You get Entei only on Diamond by Transfer it from LeafGreen and FireRed or trade it with Soulsilver and HeartGold
First, you have to trade your Pokemon Colosseum with Ruby/Sapphire (And I think Leafgreen/Firered too) Once you do that, you have to get the Pokemon to leafgreen/firered, and then migrate them to Pokemon diamond/pearl. For this though, you have to had beaten the games.
Yes you can trade leafgreen version Pokemon to another leafgreen version.
You have to Transfer it from LeafGreen/FireRed or trade it with Platinum/HeartGold/SoulSilver
No. But you can trade from FireRed, LeafGreen, Sapphire, Ruby or Emerald to Diamond, Pearl or Platinum
No. Unfortunately you can only trade 3rd generation games with diamond and pearl.
no. technically you can't trade from LG to DP but you can put the LG Pokemon in the PalPark how do you put Pokemon green in palpark
You can't trade directly to Pokemon Colosseum. You need a GBA and a 3rd generation game (Emerald, FireRed, LeafGreen, etc.) and the GBA adapter cable to connect with the Gamecube. You can trade to there and then migrate the Pokemon to your Diamond.
No you'll have to transfer it from LeafGreen/FireRed or trade it from SoulSilver/HeartGold.