Riku and Mickey were fighting heartless in the realm of darkness, searching Aqua, untill Mickey was captured by a dark ball, and from there, something came out...

Anti-Aqua: "Mickey... You're too late..."

it was her... But dark... Then Riku fighted more heartless, was Saved by Sora, who just came from nowhere, and went to Mickey, but when he did, she attacked him... But you defended him... You also came out of nowhere

Anti-Aqua: "Out of my way! You also abandoned me here!"