(Excuse me if a game like this somehow existed. I tried searching it.
Ok, this is a game of wrong answers. Someone asks a KH related question, and then the next poster gives a wrong and/or silly answer. The game continues as each new poster posts a kh-related question. The questions can be "canon" or fandom stuff. The answers can be as silly as you want them to be.
Q: "You are the one who will open the door" to what?
A: The bathroom. You need a keyblade for that.