I have Pokemon White and my friend has Pokemon Diamond. Are we able to battle eachother over the Union Room or anyplace else? I really want to battle him lol.
Sorry but you cant. White is gen V. Diamond is gen IV.
it's not possible beacuse the pokemon Diamond game does not have the Unova pokemon programed in. As far as Dianmond's concerned, those pokemon don't even exist. Sorry =-[
