The Machine Girl

The Machine Girl , Kataude Mashin Gru? is a 2008 Japanese action shockgore film written and directed by Noboru Iguchi with special effects by Yoshihiro Nishimura who went on to direct Tokyo Gore Police. The film stars Minase Yashiro as Ami, Asami as Miki, Kentar Shimazu as Rygi Kimura and Honoka as his wife. It is about an orphaned Japanese schoolgirl whose life is destroyed when her brother is killed by a son of a NinjaYakuza clan. When her hand is cut off, she replaces it with a makeshift machine gun and seeks revenge.

Eventually, they reach the yakuzas hiding place. As the fight continues, Miki loses her right foot and eventually dies. Ami loses her machine gun during her fight with Shos father Rygi Kimura, but gets Mikis chainsaw. Finding Sho with hostages to keep Ami at bay, his mother Violet Kimura manages to disarm Ami while attempting to kill her with her drill bra. However, noticing one of the hostages wet himself, Ami takes advantage and trips Violet onto the urine, electrocuting her. She then kills Sho. Feeling she has nothing left to live for, she attempts to commit suicide. At that moment, however, Ami hears noise behind her and turns, sword at the ready.According to writer and director Iguchi, the idea for The Machine Girl went back to a simple idea he had about a onearmed girl in a bikini looking for revenge. The idea for the machine gun arm came later. ........

Source: Wikipedia