I just caught this for the first time in my life while walking on the treadmill, and what a masterpiece of crap.
First of all the positive, Ferrigno is the closest to what I imagine the Ancient Greeks imagined Hercules to look like that I have seen.
He can’t act worth a shit, which matches perfectly with all of the rest of the titty chick cast. A plot that combines actual Greek myths, with bizarre nonsense vaguely related to Greek myths(Daedalos is an chick who is the ruler of an Ice realm of hell and dresses like a Valkyrie?) and random sci-fi (Tartarus is a plate armor demon who uses a laser Trident?, a gorgon with energy Minions?). Machinations with Machinations that are never attempted to be explained. The awesome dialog I expected, “I have scientifically altered her destiny”, all held together with crappy traditional effects(floppy cardboard shields) and CGI horrific even by 80’s standards(Magic and science both seem to be implemented with glowy light blobs). And the sheer genius of Zeus popping into a scene, a calling down a Deus ex machina, and leaving.