Think about FF and Disney having sex and giving birth to a lovechild. The kid was pretty cool when he was young, but he grew up to be an immense bastard.
There. I just saved you the entire basic premise of the KH series.
Terribly written fanfiction masquerading as a game.
What's that you say? The director likes ice cream? We'll make an entire game around horrible characters dressed in black leather licking ice cream goddamnit! Got it memorized?
In my eyes its a platformer with RPG elements with a story that copy and pastes emo final fantasy characters with Disney Characters. It has a complex story that makes no sense other than you play the role of a boy named Sora who gets sucked into a portal and has to kill some dudes. It has a girl and a guy as protagonists. Everyone cares about it but they never play any other games.