(This had been a draft I had never posted, I have no idea when it was written. I guess I wanted to add stuff, but since I vaguely even remember the movie, it probably will never be completed. So this is all you get, even though it seems complete to me...)
With a name like Vampire Girl vs Frankenstein Girl, you pretty much get what you expect, albeit with a few twists along the way. The movie was a pretty wild ride. Deep down the plot is actually kind of decent, but there are a few moments that are just... I don't know... out there. Bizarre. It should be noted that the film not particularly horror, just gory as hell. Gallons of blood is spilled throughout the movie in comedic fashion.
The film opens up with a boy and a seemingly sickly girl who get accosted by three girls who can basically be summed up as Frankenstein monsters. One of the Frankenstein girl's kicks the boy out of the way, and the goes for the sickly girl, who reveals that she is titular Vampire girl as she bites the neck of the first Frankenstein girl. An overly violent battle ensues. As Vampire girl is about to finish off the third Frankenstein girl, the music changes to some bubblegum j-pop music that doesn't quite fit the scene, and the opening credits start to play. This pretty much sets the feel for the movie. Exaggerated violence, mixed with unfitting happy music.
** There is really no way to give a synopsis of the movie without spoiling it (so don't read past here I guess?)**
The first scene of the movie is pretty much actually the last scene. After the opening credits the rest of the movie is a told from the perspective of Jyugon, the boy from the opening scene. His whole life changes on Valentines day. In Japanese culture, a girl gives chocolate to the boy she likes. Monami, aka Vampire girl, gives Jyugon homemade chocolate. Jyugon already has a girlfriend, Keiko who is part of the Gothic Lolita subculture. She is also the spoiled rotten daughter of the vice-principle. She more or less forced Jyugon to be her boyfriend. Monami gives Jyugon the choclate and runs off. Jyugon eats the choclate and pretty much starts tripping out. Turns out the chocolate was made with Monami's blood, which turns Jyugon into a half-vampire. Eventually Keiko finds out about Monami and Jyugon, and learns that Monami is a vampire. In a confrontation Keiko falls off the top floor of the school and dies. She is later turned into Frankenstein Girl.
Not only is Monami a vampire, she can also manipulate blood. In a battle scene she is cut on the arms, but can harden the blood into swords which are her main attacks.
The Frankenstein Girl is pretty weird. She really is a Frankenstein monster, patched together from various students. The most bizarre feature is the two arms sewn together which she can wield as a boomerang, or she can screw it into her head and use it as a propeller and fly.
What I found weird was that the character Igor was actually a servant of Monami the vampire, rather than Frankenstein. In fact Igor actually fights the man who makes Frankenstein girl, clad in armor made from bones.
This movie is not for everyone. It is very gorey, with blood spurting everywhere. If the film were to take itself seriously, it does have a decent plot.