I like the game(s)...but the whole Sora-Roxas thing kind'a gives me a headache (that was one time, till I got the basic idea as of to how...) when I tried to work out how that happened....
To be honest Kingdom hearts 1 and Kingdom Hearts 2 are the only games out of the series that made sense. Otherwise, you must think about the entire game series which will include: (1st to last) Birth by Sleep, Kingdom Hearts, Chain of Memories, 358/2 days,
Kingdom hearts 2, coded, dream drop distance, and then Kingdom Hearts 3. That's alot to think about. Especially, when most of the side games had terrible combat or story and one of the games was merely a card game (chain of memories, which was included in
Kingdom Hearts 1.5 HD Remix version on PS3).