Sounds like finally a Japanese Horror film I'd like to see. 
I will try to check it out.
Thanks for the fun review, and the posting of the drinking game. Maybe I should try this with some of my friends. 
Actually I missed a concert by Guitar Wolf some years ago they had here in germany. Too bad, as I would've loved to hear the loudes Japanese Lock'n'Loll Band. And their outfits looked very kinky.