REGISTER TO REMOVE ADS
Except she said it was in the secret ending...
Maybe the Upside down picture of CO isn't really upside down, but really the opposite side, where Riku was?
And that as he went deeper down, or, up(?) He was getting closer to darkness, right?
So my guess is that CO has a realm of Darkness and Light? Idunno. I wanna see what other peoples' guesses are.