Director: Akihiro Kashima
Biotherapy is a horror/sci-fi shocker that clocks in just short of an hour. That's right, short so you know a lot of logic is bound to get pulled out of the story like an eyeball from a screaming scientist. The story is that some scientists at the Hirose Research Institute of Biology have developed a GT (glutamyltransferase, in case you were wondering) serum derived from meteors which speeds up biological growth. As it turns out, not everyone is cool on this serum: an ugly alien-like thing, described as a "miraijin" or time traveller, in the film and probably played by the director's big brother, has been sent to retrieve the serum and cause the most unnecessarily gory violent deaths to those who developed it. Why? At under an hour do you care? Actually, since no edition of this film has any kind of English subtitles, all of the time traveller's dialog was made much harder to understand since it was overdubbed with this cheesy echoplexed "demonic" voice that has been used in Japanese TV and films for, like, ever. Let's just assume that our time traveller friend objected to the scientific and moral ramifications of the serum's use or, heck, maybe he just wanted to tear various limbs and innards from a gang of earthfolk. It's all about the same thing, isn't it?
Gore-wise, Biotherapy has some pretty nifty scenes and did win a special effects award from, of all sources, the manga magazine Young Jump. I've seen comparisons to the Guinea Pig series and, yes it does have its share of entrailsectomies, tonguesectomies, and eyesectomies but this is misleading. If anything, Biotherapy owes a lot to slashers and specifically Friday the 13th; the time traveller wears a mask to cover his face and always breathes heavily a la Jason as he is stalking his victims (and in an unintentionally humorous touch, his appearance is signaled with a lightning-like flash and a synth drum beat). There is one scene in which a character is stabbed in the chest with several test tubes and blood, geyser-like, pumps out of her chest. This is the type of scene I was looking for (and failed to get) in Commando's death-by-pipe-impalement scene.
In all, not an entirely bad film to check out if you can but there are better things you can do instead of watching it. Like watching half of a better film.