Absolutely insane! (In a good way!)
I don't know if they will end it there, but if they do it was a good note to go out on. Nice after credits sequence - completely forgot about that person! I wonder who her intended target actually was - Caine, or his daughter? The latter would probably punish him more, as payback for Caine's killing of Akira's father.
8/10
Very much looking forward to the prequel/sidequel, Ballerina.