Just like in Diamond and Pearl, you have to have an old DS or any DS because the DSi. You cant trade your Pokemon between them but if you got the gba game in the ds with platinum, you cansend your Pokemon to the DS game. You cannot however get them back on the gba games.
u cant get mewtwo in platinum. But, you can get him on: Firered, Leafgreen, ect.
To catch Mewtwo in LeafGreen or FireRed no. To migrate Mewtwo from LeafGreen or FireRed to Diamond/Pearl/Platinum yes you have to have it in Diamond/Pearl/Platinum.
Trade at the GTS or import it from FireRed/LeafGreen at the Pal Park.
you can not reduce evs in leafgreen and firered
You can't go to Johto in Pokemon FireRed or LeafGreen.
yes
Yes, unfortunatly!:(
You can't you have to migrate it from FireRed or LeafGreen.
You'll have to migrate it from FireRed or LeafGreen.
migrate from firered and leafgreen
Trading, migrating from LeafGreen or FireRed, or cheats.
Migrate From Pokemon FireRed,Or Pokemon LeafGreen,Or Use The Action Replay Pokemon Modifier.
You can't get one in Platinum at all. You'd have to transfer one from FireRed or LeafGreen.
u cant get mewtwo in platinum. But, you can get him on: Firered, Leafgreen, ect.
You can't. You have to migrate from LeafGreen or FireRed.
You must migrate from FireRed/LeafGreen or trade from Platinum.
You have to Transfer it from LeafGreen/FireRed or trade it with Platinum/HeartGold/SoulSilver