Quote Originally Posted by jammi567 View Post
I recon that was done by DiZ.
Either that or it was part of the intrusions that DiZ was worried about (more specifically, the scene in which he is telling Riku that he will not be making a Beach setting, because it would give the Nobodies another entry point).

Either way is a plausible explanation, because it mirrors Sora's Darkside. lol entendre