Noburo Igichi's The Machine Girl is basically what you'd get if Peter Jackson had sat down with revenge-epics Oldboy and Kill Bill instead of a bunch of slasher flicks before making Dead Alive. Like Jackson's classic gross-out horror comedy, The Machine Girl is low-budget, outrageously gory, and perfectly cast. And if it never reaches quite the same heights ("I kick ass for the Lord!"), it's also far more consistent and doesn't suffer from the dragging pace of its predecessor.
Warning: trailer may contain both spoilers and awesomeness.
Without spoiling things too much, The Machine Girl is about a student named Ami whose brother is killed by the son of a local Yakuza boss. Ami tries to take revenge, but loses an arm in the process. She's taken in by the parents of her brother's friend (also murdered), who join her in her quest for vengeance by constructing a prosthetic chaingun arm. Ultraviolence, and no small amount of stupidity, ensues.
I hesitate to say that it's a good movie. But then, to call something like The Machine Girl "good" is to miss the point. This is gleefully juvenile, not high cinema: it's Takashi Miike without the class, early Sam Raimi without the playfulness. At one point, someone is stabbed in the neck so hard that they spit out their intestines. If you can handle that, and if you finished the trailer with a stupid grin on your face, you'll probably enjoy it. But like Dead Alive or Miike's less artful outings (Gozu, for example), it's definitely not for everyone.