Every movie like this needs to start with a BANG, and this one doesn't disappoint. The first 15 minutes are truly awesome. You'll especially like this part if you hate golf...or cops. It features some really awesome martial arts sequences.
It starts getting a little weird shortly after, when the leading lady starts showing signs of her possession. There's some sci-fi like special effects, and the entire film is full of far-out analog synth sounds, similar (in many cases identical) to the music featured in Revenge of the Ninja (which you watch last because it is the best of the 3). But before long, our heroine starts kicking some major police butt, a task she's well suited for, being in incredible shape and possessed by a master ninja.
We don't see much of Sho Kosugi himself until the second part of the movie. Of course, he does plenty of his own incredible fight scenes, in his trademark style, especially at the end.
The mystical ninja aspects are a little over the top, with many quite unrealistic high jumps in the fights. But there are also lots of really cool stunts in this flick, involving rope swinging, climbing, and lots of motorcycles. Robbie Knievel even does some of them! Also, I can't be sure, but be on the lookout for a quick cameo of of Ashley Ferrare, the female star of the aforementioned Ninja prequel. Not hard to spot, as she's wearing that same red gi!