|Home world:||Planet Earth|
|First appearance:||Ultra Q Episode 23: "Fury of the South Sea"|
Subtitle: Giant Octopus (大ダコ Dai Dako?)
- Length: 100 m
- Tentacle length: 200 m
- Weight: 300,000 t
- Origin: Compass Island
Sudar was a gigantic, man-eating octopus thriving in the South Sea, Sudar made its claim on the waters. It attacked a passing fishing boat, sinking the ship and leaving just one survivor. Hearing of the attack, Jun and the others arrive looking for scoop, but they find much more. As they visit Compass Island, where the survivor was discovered, the octopus crawled ashore. It chased after a young boy, trying to ensnare the boy with its tentacles. Thankfully the boy was rescued by one of the newsmen, denying the octopus its food.
The creature retreated back into the depths, but a sudden depth bomb attack would stir its vengeance! Enraged, the octopus crawled ashore once more, using its lengthy tentacles to catch the stunned natives, ignoring the bullets and spears thrown against it. When Jun managed to impale its head with two spears, the creature turned away again, heading for the water. With humans following, Sudar's body suddenly collapsed, the spears Jun threw having hit something vital. The octopus was killed, leaving the South Sea in peace.
- Sudar's prop is actually the Giant Octopus prop used in the Toho films King Kong vs. Godzilla and War of the Gargantuas.
- Color stock footage of Sudar, along with stock footage of the Giant Octopus attacking a village in King Kong vs. Godzilla, were used for the Giant Octopus that appeared in Fight! Mighty Jack.
- This episode is based off of Eiji Tsuburaya's early proposal for the film that went on to become the original Godzilla.
- A tentacle prop from War of the Gargantuas was used for some shots of this episode.
- Sudar's concept art suggest that he was originally meant to be a fish-like monster. This was changed for unknown reasons.
Powers and Weapons
- Tentacles: Like normal octopi, Sudar is armed with eight tentacles, Sudar can use his tentacles to ensnare opponents, as well as strike foes with them.