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The plot is fairly simple. Ami Hyuga (porn star Asami) is a teen aged school girl forced into caring for her younger brother Yu after their parents were falsely implicated in a murder and committed suicide. Yu is like every kid that spends his free time playing videogames. He gets picked on ceaselessly. In this case, the bully is the son of a Yakuza ninja. On one unfortunate day, Yu and his buddy Takeshi are attacked in a parking garage and thrown from the roof to their deaths. Ami is too late to save him. Now, the last remnants of her family destroyed, she vows revenge. The first attempt doesn't go so well. Ami is captured by the bully's sadistic family and tortured by his mother and father. Now, minus an arm, she manages to escape and collapses by the auto repair shop run by Takeshi's parents. Nursed back to health, and with a prosthetic limb in the form of a machine gun, Ami can seek her ultimate vengeance.
This picture is insane. The villains are despicable. The Yakuza head forces a chef to cut off his own fingers after fucking up his tempura at one point. His wife chastises him for being "too soft" and makes the guy eat his fingers as well. The violence is so far over the top that it's clearly not meant to be taken seriously. The Lone Wolf & Cub series of the 70s appears to be an influence here as geysers and geysers of arterial spray flood the screen in nearly every other shot. At one point, a head is split down the middle and appears to bloom as a flower (a possible lift from Baby Cart at the River Styx). There's a fucked up scene where the Yakuza bust into the house of Ami's friend, Yoshi. The following brief exchange takes place:
Yakuza boss: Where's Ami?
Yoshi: I don't know!
Yakuza boss stabs her in the head, arterial spray, she's dead, etc.
Yakuza boss (to his henchmen): Ok, you guys can have some fun with her. It's not often you get to plug a flower before it has bloomed.
Henchmen begin to disrobe.
Uh, ok, perhaps something was lost in the translation. Anyway, fucking awesome interrogation technique man. How can I enroll in the Yakuza school of gathering information through torture?
This is a message film through and through. It's ok to kill in the name of revenge. As Asami tells her mechanic friend (I couldn't find her name in my notes, but I did learn she's another porn star) "if you can think of a good way to get revenge without killing people, let me know." Living well is a fucking awful method of revenge. Same thing goes for that old klingon proverb. Revenge is a dish best served with gobs and gobs of warm pulsating blood and viscera.
I'm not sure how Ami became such an accomplished fighter, but luckily this movie provides a brief montage to fill in some of those gaps. There's a fantastic fight scene at the garage when Ami and her new friends are attacked by a squad of high school ninjas. The battle features lots of gaping holes and blood spray (like most every battle in this film). Unfortunately for Ami, she didn't count on the families of the now slain ninjas later seeking vengeance upon her. See, it's a vicious cycle, this violence. Best kill every fucking one.
The final battle takes place at the Yakuza compound and features a grappling decapitator (aka "the flying guillotine" aka "the executioner's blade") as well as a pretty damned sexy drill bra. You read that right. The school bully that murdered Ami's brother employs a human shield of nerds at one point and justifies it by saying "a ninja does what he must to survive." The climax is brilliant (let's just say it involves something becoming electrified in nerd pee). The whole picture is brilliant. Yes, they overused what was, at times, some pretty mediocre CGI. Yeah, I watched the dubbed version which, in my opinion, served to enhance the comic book flair. It's also available in subtitles but I was too lazy to read the night I watched it. Sure, one of the characters loses a leg and replaces it with a chainsaw (wait, that's a positive). This thing is so amazing that I can't possibly continue this review. I'm spent.