Yeah, I guess I'll just try to get ahold of another copy of the game and see. I'm sure it's not the controller because the controller works fine with all my other games. I can still use the X button in other parts of KH, which is what I don't understand. *sigh* The game used to work just fine. I got it for Christmas while I was visiting my parents and it worked fine the whole time I was there (I'm in Halloweentown now, in the Hidden Playroom or whatever it's called). And now I can't play it =(
I don't think it's my PS2, because I haven't had any problems with playing any other game. So thanks for all the suggestions, guess I'll bring it to some gaming store and see what they can figure.