Lou Ferrigno (aka The Incredible Hulk) returns as Hercules in this kinda-sequel to 1983's Hercules.
In this rather Xena: Warrior Princess-meets-2001: A Space Odyssey rambling affair, the Earth and Universe is given a fresh origin story for no readily apparent reason, then we learn that a quartet of rebellious gods have stolen the Seven Thunderbolts of Zeus, which give the top god dominion over all.
This disruption in the eternal balance causes the Moon to - very slowly - fall out of its orbit and threaten the existence of Earth.
The thunderbolts, it turns out, have been hidden inside monsters, which Hercules must tracks down and defeat (or simply bump into as random encounters).
It just so happens that he is also drawn into a side-adventure by the lovely Gabrielle-like Urania (Milly Carlucci) to save her sister, Glaucia (Sonia Viviani), and village from the fire demon Antaeus (which bears more than a passing resemblance to the Id monster from Forbidden Planet).
This entails finding a balm that will protect Hercules from "the fire monster's radiant heat", that's another side-quest, but all, eventually, somehow, ties back into the main plot.
Urania has some kind of prophetic ability, which involves communing "with the Little People" (a pair of identical spirits) at random shrines around the country, who put her in touch with the gods and warn of her fate.
Meanwhile, Minos teams up with his old pal, Dedalos (Eva Robin), who gives him a very unscientific magic sword of ice, with the power to slay gods, before granting him superpowers.
On a positive note, at least the rubbish bargain-basement robot monsters from the first film have been replaced by "men in rubber suits" and slightly more mythologically accurate models (although neither are exactly top quality).
The story rambles all over the place, managing to add an intriguing level of surreality and deviousness to events that this low-budget swords-and-sandals fantasy/sci-fi mash-up probably doesn't truly deserve.
Ferrigno is great as Hercules (when he's actually onscreen), but I've read that he didn't even know he was filming this sequel.
Writer/director Luigi Cozzi had actually been tasked by producers Menahem Golan and Yoram Globus to film extra scenes for Ferrigno's The Seven Magnificent Gladiators, but then they decided to use this material as the basis of a new film (Hercules II) instead... without telling their lead actor!
Which would explain his physical absence from so much of the movie.
And the patchy nature of the bonkers plot.
EuryaleA demonic medusae, while not as powerful as her full-blooded kin, she has the magical gift of being able to disguise her appearance (although her petrifying gaze does not work when 'in disguise').
Her true form is an emaciated human torso on top of a giant scorpions body, her head being crowned with a nest of snakes.
#ENC: 1 (unique)
AC: 3 
ATT: Fist (1d3) + Scorpion tail (1d8+2 + poison)
Special: Petrifying gaze
GLAMOUR: Euryale has the magical ability to appear as a noble-looking human woman. Those encountering her can check against their INT on a percentile roll to see if they sense anything 'strange' about her. She can maintain this appearance as long as she wishes, but is aware that some people can have a "funny feeling" around her, so tends to stay within her subterranean domain. Otherwise her glamour is fool-proof.
However, under this spell, she is unable to use her petrifying gaze or scorpion sting. It takes one action to drop the glamour and reveal her true form.
PETRIFYING GAZE: Once per round, Eurydale can fix a foe with her gaze and he must save versus Petrification or be turned to stone. The effects then last until Eurydale is slain, then her victims revert to their original forms 1d6 hours later.
SCORPION STING: Once every other round, Eurydale is able to strike at a foe within 5ft with her powerful scorpion tail. If it strikes, and causes damage, the victim must save versus poison or take 1d6 damage per round for three rounds as his blood burns inside him.
Antaeus The Fire DemonOnly able to walk the mortal realm when summoned from the depths of hell by the darkest magics, Antaeus is a being composed of living radioactive fire and energy that lives only to feed on mortal flesh.
When he attacks, he condenses into a 18" diameter ball of light, which then hits and embraces its target in searing heat, burning the very life out of its victim, reducing them to a charred husk.
Luckily the spell used to summon him means he can only exist on the Prime Material Plane for one hour, or until he has drained the life of a virgin (his preferred meal).
#ENC: 1 (unique)
AC: 2 
ATT: Fiery embrace (3d10)
Special: Immune to non-magical weapons, magic resistance (80%)
RADIANT HEAT: All living beings within 20ft of Antaeus automatically take 1d8 heat damage per round they remain close to him (save for half damage, each time). Because of the radioactive nature of this heat the damage is cumulative, so the second round they take 2d8, the third 3d8 etc. Clever characters might try dancing in and out of range, but the cumulative nature stays in effect for the duration of Antaeus's time on Earth.
ELEMENTAL FIRE: Non-magical weapons used on this demon not only have no effect on him, but will melt to useless scrap (if metal) or combust (if flammable) into ash. Anyone striking him with a bare fist - unless somehow magically protected - will automatically suffer 3d10 damage, as though the demon had struck him.
Styx Balm: Found in a small glass vial, this is a single-use balm that must be applied all over the body, then grants total immunity to any form of fire damage (normal or magical) for 1d4x1d4 rounds (only the DM knows the duration!)
Golden Leaves Of Hespa: Usually found in a clutch of 1d3 golden leaves, a single leaf must be fully consumed for the user to gain its full effects. It must also be eaten within 10 yards of a deep body of water, or their magic is wasted.
Used within range of water, the leaves transform the eater into a ball of light which teleports to the bottom of the water, where the user changes back into their original appearance - but as an ethereal being, immune to the effects of the water, for the duration of the leaf's magic.
Should the user will it, she can transform back into a ball of light and return to the beach they came from, back in their physical body.
The leaf's enchantment lasts for an hour, or until the user get out of the water, at which point their corporeal body returns (which could be bad news if they are still at the bottom of the ocean).