It's another product of the 80s era of ultraviolent cyberpunk OVAs. The premise is pretty simple. Man creates some kind of new bioweapon, the Genocyber. It unsurprisingly gets out of control and the End Times™ ensue. I've lost count of how many 80s OVAs I've seen at this point where humanity meets a gruesome end with little to no redemption. It's amazing the kind of nihilism that gets instilled into the psyche of a people when they've got 2 nuclear cataclysms in their national history.
Among other things, Genocyber is part of the transforming hero craze of the 80s and early 90s. I don't quite understand the apparent obsession the Japanese had with drawing these nightmarish scenes where machines meld together with flesh into these horrific and disgusting displays, much like in Akira, but here we are. There is plenty of that, but also no shortage of exploding heads, chests, flying intestines, eyes, spines, the whole 9 yards. One guy is shown somehow still alive while on an operating table, his torso all cut open, and his ribcage and intestines all exposed. You witness him gain consciousness and scream in terror upon seeing himself that way.
Funnily enough, I got the distinct sense that, although completely gratuitous in its depiction of blood and guts, Genocyber displayed an obvious unwillingness to show female nipples. There are several shots of nipple-less naked women in the show. Just felt like a weird thing to be prudish about, all things considered.
Unless you have a dread fascination with this sort of thing, I can't say I recommend it. I am hard-pressed to describe it as time well spent. It's not that it's sickening or offensive or anything. It's as straightforward as shock value gets. That's not the issue. The issue is that it's largely just boring.
