[[quoteright:322:[[GivingSomeoneThePointerFinger http://static.tvtropes.org/pmwiki/pub/images/PrinceOfSpace.png]]]]
[-[[caption-width-right:322:"Your weapons are useless against me!"]]-]

A group of chicken beak-nosed space men from the planet Krankor who refuse to wear underwear underneath their suits are led by their leader, Phantom, to invade Earth. But a superhero named Prince of Space (actually a bootblack in disguise) arrives to defeat the spacemen. His superpowers include a magical laser-proof grill lighter, reasonable skipping ability, and the knack for saying some variant of, "Your weapons are useless against me!", which is apparently quite accurate, although he dodges their laser blasts anyway, just to be safe. Although the weapons of the aliens are indeed useless against the Prince of Space, the Phantom continues to fight, and many plot twists (including capturing a group of elderly scientists) ensue.

Prince of Space was edited from two movies, "Planet Prince" and "Planet Prince - The Terrifying Spaceship" which may explain why the plot is a bit wonky. The films were adapted by Toei from a live-action television series of the same name, though with many differences such as a new costume for the main character. The original TV series was a follow up to the extremely popular ''Moonlight Mask'' superhero series, though it also borrowed liberally from the ''Super Giant'' film serials of the time. The television series even had the main character wearing a costume identical to Super Giant. The Prince of Space character is somewhat iconic in his home country. The two films actually retell a story arc from the television series featuring the Phantom of Krankor.

For the ''Series/MysteryScienceTheater3000'' version, please go to the [[Recap/MysteryScienceTheater3000S08E16PrinceOfSpace episode recap page]].
!! ''Prince of Space'' contains examples of:

* AlienInvasion: Subverted. The Phantom of Krankor actually came to Earth to steal the things he needs in order to properly invade the Earth.
* AliensAndMonsters: If by aliens you mean guys with chicken nose prosthetics and no undergarments and by monsters you mean weird lumpy guys with their zippers showing.
* AliensNeverInventedTheWheel: The Krankor invaders have interplanetary spaceflight, but their fuel technology is far behind Earth's, hence why they're here to steal our secrets.
* AllEncompassingMantle: Botched. The Prince of Space and Krankor both have them, but since they barely go down to the waist, they end up looking more like old-lady shawls.
* AttackOfThe50FootWhatever: The Guardian, which looks rather like a giant Ferengi made forty years early. Its ears are ''big.''
* BenevolentBoss: For everything he does, the Phantom is actually very good to his own people, and when he promises to lead Earth into an era of peace and prosperity if they surrender you can actually believe it. Of course, if you ''don't'' surrender to him...
-->'''Phantom of Krankor:''' Give everyone four hours off!
* BigBad: Phantom of Krankor.
* CatchPhrase: "Your weapons are useless against me!"
* ClarkKenting:
** Wally actually does wear a mask in his Prince of Space identity, but he's still woefully inept at keeping it cool and allaying suspicions. "Wait, how did Prince of Space get in here and--" "NEVER MIND THAT! GO!"
** The aliens themselves, on Earth, disguise themselves with big goggle glasses (to hide their alien eye-shadow) and mouth filters (to hide their chicken-noses).
* CompilationMovie: The US version of the film was cobbled together from two films covering the same material, leading to an even ''more'' incoherent plot.
* CoolShip: The prince and the Phantom.
* DoNotAdjustYourSet: The Phantom says this when he takes control of Earth's televisions.
* DubInducedPlotHole: In Japan, their weapons ''weren't'' useless against the Prince of Space, which is why he dodges so much.
* DubNameChange: Everybody. Planet Krankor is also called Ginsei, or Silver Star/Planet.
* DullSurprise: The kids (and adults) in the American version are at about the level you'd expect from a 60's TV dub, but the child actor dubbing Mickey takes it to a whole new level -- every one of his lines is delivered so flatly and loudly that he comes off as a belligerent, snide tough guy. His slight {{Joisey}} accent coming through doesn't help.
-->'''Mickey:''' What's wrong with bootblacking? We like it ''very much!''
* EasilyThwartedAlienInvasion: One guy in spandex with no super powers scares off the entire invasion force.
* EmptyPilesOfClothing: The alien death ray leaves behind hats, helmets, and guns, but not uniforms.
* EvilLaugh: Phantom has a pretty good one. "Hyeh! Hyeh! Hyeeeeh!"
* {{Expy}}: Prince of Space is a character created in the wake of the success of ''Super Giant''.
* GoodHairEvilHair: The Phantom has an obviously evil mustache while the Prince is extremely clean shaven.
* ImmuneToBullets: The Prince claims this numerous times, but he still constantly dodges and runs away from them anyway. See DubInducedPlotHole above; it's supposed to be that he's so good at dodging and/or deflecting energy rays that they're useless against him rather than pure immunity.
* ImperialStormtrooperMarksmanshipAcademy: After the Phantom reveals his automated defense system the Prince dodges the dozen plus guns by doing ''absolutely nothing''.
* LargeHam: Phantom, which is one of the movie's redeeming features.
-->'''Phantom of Krankor''': "I've got you now, [[YouRebelScum ya SCUM!]]"
* LaughablyEvil: Phantom of Krankor.
* TheLoad: The scientists really do basically nothing throughout the movie except get captured, forcing Prince of Space to save them.
* LuckilyMyPowersWillProtectMe: Only in the dubbed version, however.
* MacGuffin: The rocket fuel the scientists recently designed, which is said to be the reason Phantom came to Earth. Although his ships are advanced, if he had a comparable fuel he could send 100 ships to Earth instead of one.
* MadeOfExplodium: A ridiculous number of things explode easily in this film.
* MagicPants: The disintegration rays of the Krankor aliens instantly cause humans to vanish, but for some reason leave their hats and guns intact. There's not even a token pile of dust!
* MaskPower: The Prince himself.
* ParrotExposition: Apparently being a ''brilliant scientist'' requires constantly asking your captors to repeat themselves ad nauseum. There's a reason the trope name used to be "Prince of Space, sir!"
* PlayingWithFire: The Guardian has fiery breath.
* PlotHole:
** If The Phantom Of Krankor could observe the humans from space, and peek into anywhere in the world, why didn't he just observe the creation of the formula and take notes? Of course, this blatant lapse in logic vanishes upon the realization that Phantom is a total clod.
** The villain travels through space to the planet Earth, so that he can steal a formula for rocket fuel that will allow him to...travel through space. This is even [[HandWave hand-waved]] in the film itself, by a group of journalists who ask the head scientist why such an advanced race needs Earth technology. The scientist's explanation--their fuel technology lags behind ours--is wholly unconvincing. How could they master space flight with inferior fuel technology to 1950s earth? Then again, seeing as how they made four round-trips to earth throughout the film, maybe they are just not very fuel-efficient.
** How did Wally zip ahead into the apartment to leave that note warning the kids to run?
* RubberForeheadAliens: In this case, it's aliens with rubber chicken noses.
* SciFiWritersHaveNoSenseOfScale: The Phantom claims that the planet Krankor is "half a million [[TwoOfYourEarthMinutes Earth miles from Earth]]". To put it in perspective, our moon is just under a quarter of a million miles away. A half a million miles wouldn't put them out of our solar system... it wouldn't even get them halfway to Mars! Although Krankor being quite close to Earth ''would'' close several plotholes...
* SecretIdentity: Wally the bootblack is actually Prince of Space.
* ShoeShineMister: Prince of Space is a shoeshine boy.
* ShootingSuperman:
** At one point even the Prince laments the stupidity of the villains constantly shooting at him when their guns won't work on him.
** And Krankor always has one, and only one, backup plan for when the Prince declares (and demonstrates) his immunity to their guns. It's usually some version of, "Blast him!"
* SpaceClothes: For an advanced civilization that can make spaceships, not inventing underwear is a mysterious oversight.
** Well...[[OneGenderRace there don't seem to be any women around...]]
* {{Superhero}}: As superheroes go, at least he has powers and knows how to use them. Unlike a certain [[Film/PumaMan Puma themed superhero.]]
* ThrownOutTheAirlock: Dr. Macken's "worthless" servant chauffeur was disposed of in this way when Phantom captured them.
%% * {{Toku}}: The original films and the TV series that spawned them.
* TooDumbToLive: The Prince of Space has stated numerous times that the aliens' weapons won't work on him. He's even proven it, by easily dodging and/or deflecting their ray gun shots. He's even managed to ''reflect'' their shots right back at them, killing or injuring numerous alien invaders with their own attacks. So, what do the aliens do about this? Why, keep trying to shoot him, of course! They do eventually try one other tactic against him: leading him through an AsteroidThicket. When he survives their first response is "hey, let's try it again."
--> '''Crow:''' (After the alien invaders have been destroyed.) And a proud, noble civilization dies out. ...sometimes. This ''loser'' civilization, however, will not be missed!
* UnfortunateNames: Krankor. It really sounds like "crank whore" or "crack whore" when one first hears this.
* UnusualEars: The giant man creature on the planet Krankor has ''enormous,'' Ferengi-like ears.
* VillainBall: The aliens. C'mon after being told '''''repeatedly''''' their weapons won't work. He still gets shot at.
* WhyDontYaJustShootHim: Krankor threatens to dispose of the kidnapped scientists by putting them in individual space capsules and launching them into space. Instead of, you know, shooting them. Or [[ThrownOutTheAirlock throwing them into space without the capsules]].
** Maybe their weapons are useless against them too?