Pretty awesome.
It did lag like shit on a few scenes though, and the first room was very badly animated, but the rest was pretty damn good. The fbf effects were actually great and the transformations throughout were pretty cool. I loved the overhaul of the blood, gore, and violence alltogether, and the music made it bring back memories of the old days of Maximum Ninja and stuff, very well done.
The only thing I can really complain about besides the lag is that I loved the few sounds that weren't madness sounds in this flash, and when I saw that the "sounds:" thing at the end was blank, I actually got pissed. Is there any site or soundpack in particular where you got these sounds?
-DriftLV1