I came to this film after a viral tweet expressed how Final Fantasy VII, Armored Core and Metal Gear owed a debt of gratitude to this film's imagery. I can easily imagine an impressionable teen or 20-something seeing this and later creating concept art for any of those game series; the resemblance is sometimes uncanny.
A story about tech scavengers entering the dormant 500-floor megafortress of a Skynet-like rogue AI is an obvious product of its time; one part Stalker, one part The Terminator, and existing in a continuum of otaku "mecha" media & techno-action video games.
The fortress is a chemical plant hellscape; the Death Star but without its austere cleanliness. Tangles of pipes stretch endlessly into the dark horizon strewn with wreckage from a decade-past humans-vs-robots showdown. Nightmarish "bioroids" lurk in the shadows as the scavengers rummage for lost technology.
Gunhed's particular horror revels in Japanese industrialization gone amok with its labyrinthine steel superstructures, putting it on a similar wavelength to "Patlabor: The Movie" and Katsuhiro Otomo's "Akira" and "The Order to Stop Construction". Its sometimes sublime imagery recalls the foggy and colorful sci-fi noir of Ridley Scott films and "Aliens". It could be a cultural touchstone for some, but it's very much a product of its time and wears its influences on its sleeve.
When the rogue AI's apocalyptic plans are revealed, their only hope is to repair the titular "gunhed", a giant, bipedal, transforming tank accompanied by a witty computer personality. Gunhed delivers the goods in terms of miniature-based visual effects. Whether good or bad, it often charms. A scene where the gunhed tank aggressively fords a pool of chemicals while fending off automated defenses is impressive; fire and waves and sparks filling the screen. I would love to see the filming of that battle.
Unfortunately, much of the storytelling is conventionally poor, visual or otherwise. Sometimes it's hard to tell what characters are doing, or what's happening to them. The dialog, with its blend of spoken English and Japanese, is 1980s style-over-substance; charmingly dated and poorly acted. It's only engaging as an artifact of its era, rather than a functionally good movie. If you're looking for cultural artifact to study, then Gunhed is interesting. Otherwise I'd skip it.
Patlabor: The Movie is an extremely similar but significantly better film in almost every respect: depth, writing, visual storytelling, and comprehensible action choreography. Like Gunhed it's about characters who enter a labyrinthine superstructure full of mecha gone amok in order to avert a Japanese industrial robo-pocalypse. Proving my point about the zeitgeist, it released at nearly the same time as Gunhed.
