- Antonio's Aide: We've got a message coming from Star Hunter "M" Universe. "We are sending you the monster Gaigan, as requested."
- [Goro, Hiroshi and Rokuro are on their way back to the laboratory, and listen to a radio on their car]
- Radio Announcer: And now for the latest news flash: Earthquakes are still being experienced in many parts of the Pacific. It is feared many lives have been lost. According to the National Seismic Institute, the disturbances were undoubtedly caused by the nuclear tests. They also warn that more tremors are expected.
- Hiroshi Jinkawa: Incredible, isn't it? What the hell are they trying to do, wipe us all out or something?
- Inventor Goro Ibuki: You're right. They'll kill the whole world off in one day, submerge the land and drown us all. We'll vanish like Mu and Lemuria.
- Rokuro 'Roku-chan' Ibuki: What's that? Where's those places? I never heard of them before.
- Inventor Goro Ibuki: I'll tell you. They were continents that existed a long time ago. One in the Pacific, one in the Indian Ocean. Then, one day, there was a big earthquake... and they both vanished. Mind you, I must say, the majority of historians believe they only existed in legend.
- Hiroshi Jinkawa: Look, you're sure you want to go? Could be damned dangerous.
- Inventor Goro Ibuki: I know but I built that robot myself. I feel responsible.
- Hiroshi Jinkawa: So he's like a son? That's very touching.
- [last lines]
- Inventor Goro Ibuki: [speaking into the Miniature Control Transmitter] Jet Jaguar, lets go now.
- [an idle Jet Jaguar nods in response and walks away]
- Hiroshi Jinkawa: Oh? What's the matter with him?
- Inventor Goro Ibuki: [smiles in fascination] Dunno... I guess he decided his job was done. But still, I reckon he'd do it again, if the need ever rose again.
- Hiroshi Jinkawa: Well, let's just hope that it doesn't. We'll warn the scientists to be more careful in the future, and let Seatopia rest in peace.
- [Goro nods in agreement]
- Rokuro 'Roku-chan' Ibuki: [starts to catch up with Jet Jaguar] Hey! Hey! Jet Jaguar!
- [Jet Jaguar, controlled by the Seatopians, is spotted by our heroes flying around Megalon]
- Inventor Goro Ibuki: Hey! Isn't that Jet Jaguar there?
- Rokuro 'Roku-chan' Ibuki: Yes it is! It's him all right!
- Inventor Goro Ibuki: Damn! They're controlling him!
- Rokuro 'Roku-chan' Ibuki: It's a pity we can't send Jet Jaguar to go and get Godzilla!
- [Jet Jaguar is about to ram into an army helicopter, in which Goro attempts to regain control of the robot with his miniature control transmitter]
- Inventor Goro Ibuki: Jet Jaguar, stop!
- [Jet Jaguar stops]
- Lead Seatopian Agent: [back in Goro's laboratory, looking on Jet Jaguar's POV camera monitor] What the hell's happened? He stopped!
- Inventor Goro Ibuki: Get Godzilla! You'll find him on Monster Island!
- [Gigan flies along to enter the fray and aid Megalon against Jet Jaguar]
- Rokuro 'Roku-chan' Ibuki: Oh! Gigan's come! Just look!
- Hiroshi Jinkawa: Whose side's he on?
- Inventor Goro Ibuki: The monster's of course!
- [Hiroshi is tied to a chair in Goro's lab, held hostage by the lead Seatopian agent]
- Hiroshi Jinkawa: Where are you taking my friends?
- Lead Seatopian Agent: To the kingdom of Seatopia.
- Hiroshi Jinkawa: Seatopia?
- Lead Seatopian Agent: That's right. It's a country below the surface of the sea. It was engulfed in an earthquake millions of years ago, and most of its people survived. They managed to create their own oxygen supply, and later were able to construct their own sun.
- Hiroshi Jinkawa: So the legend's true!
- Lead Seatopian Agent: We are a very advanced people. Our scientists are much superior to yours.
- Hiroshi Jinkawa: Well, if you're so damn clever, why steal our robot?
- Lead Seatopian Agent: We have few people. We need to have robots in order to build up an army. Now, we don't have the time to invent them.
- Hiroshi Jinkawa: Oh yeah? You mean you're too dumb!
- Lead Seatopian Agent: [insulted] Why you...
- [the agent slaps Hiroshi, who manages to break his bonds and fight back]
- Emperor Antonio of Seatopia: Contact Star Hunter Universe M. Say we need Gigan's help immediately.
- Antonio's Aide: Right.
- Emperor Antonio of Seatopia: Additionally, notify our people on Easter Island.
- Emperor Antonio of Seatopia: Our people, today, Seatopia goes to war. After three million years of peace, we finally have to fight. We don't want to, but the people of Earth leave us no choice. With their nuclear test, they've already destroyed a third of our country. No more! Seatopia will strike back! For today, the earthmen now will have to take their own medicine. That's right. For I will unleash Megalon to protect our land, our underwater world!