Mutant Girls Squad A.K.A. Fighting Girls: Legend of the Blood of the Iron Mask, Sentō Shōjo: Chi no Tekkamen Densetsu (2010)

A Japanese action adventure by Noboru Iguchi, Yoshihiro Nishimura and Tak Sakaguchi, starring Naoto Takenaka, Kanji Tsuda, Suzuka Morita and Asami Sugiura.
On a girl's 16th birthday, she finds that she is a mutant called a "Hilko". Hated by humans, she slaughters everyone at a shopping area and is recruited by the Hilko clan. There she is trained to fight and sent on a mission to kill humans. She befriends 2 of the other Hilko girls and together they face the corrupt Hilko leader.
This was better than Dead Sushi and The Machine Girl, but it's pretty much impossible to be better than RoboGeisha. The style of the film was very similar to the other films made by this team, which I have described in other posts. Good action scenes and good firehose blood spray. Overall, if you think that Japanese school girls with weapons coming out of them is a good idea, you will like this. I rate it awesome. WATCH IT!