Too many flashbacks, not enough battle.
EDIT: I thought the ending was good, but I didn't really understand the outcome. WTF is up with this big ball of rainbow light? And then they hold hands? Too much symbolism or just plain confusion. I just want a goddamn fight. I know it's going to end in a draw, but I still want to be entertained by the fight itself.
BTW, Susake's hand-wings were freaky.
Rosalina: But you didn't.
Robert: But I DON'T.
Rosalina: You sure that's right?
Robert: I was going to HAVE told you they'd come?
Rosalina: No.
Robert: The subjunctive?
Rosalina: That's not the subjunctive.
Robert: I don't think the syntax has been invented yet.
Rosalina: It would have had to have had been.
Robert: Had to have...had...been? That can't be right.