PORNOSTAR aka Tokyo Rampage
http://www.asian-horror-movies.com/tor.php
A young man decides one day to start killing yakuza. After he kills his first two he gets roped into helping a wannabe gangster to perform a hit.
This young psychopath quickly becomes more trouble than the gang expected. Will they be able to rid themselves of him, or will they be his next victims?
Great movie. I love the revenge on gangster movies. When I tried to download it however I had some trouble with spam, if anybody knows here I can download a copy of this(not from a torrent) please let me know. 4 out of 5.