Hey, i dont know if this was posted already, and if it was, sorry, but I've been wondering for awhile...
In KH1 when Sora was turned into a heartless, Roxas was created. When Sora turned back into himself, it was only the heartless part that turned back. Roxas was still there. So Sora should only have been half capable of his full potential up until he and roxas combined, but now that they are combined Sora should be twice as strong and be able to use new abilities like having roxas jump out of him and them having a combination attack or something. Also in the next kingdom hearts game(i mean basically KH3, where sora recieves the message in a bottle from Mickey) sora could be having problems with roxas where Roxas wants to be his own person again.
Anyone else have any ideas on this???