* BigLippedAlligatorMoment: Again, the Hitler Building.
* DesignatedHero: Space Chief helps save the kids from the aliens at the beginning, but does pretty much squat after that. He doesn't even get to finish the Neptunians off.
** Of course, as his secret identity he does beat them. In fact, his civilian version is a lot more useful in every respect.
** He more or less becomes "Too Little Too Late Chief" by the end. He shows up after a few dozen buildings have been blown up, probably hundreds dead, and even then, he takes his sweet time actually taking down the ships.
-->''(singing)'' "Space Chief failed miserably and tried to cover up his shame."
* FashionVictimVillain: ''"Ha-ha-ha-ha-ha...Your costume is ridiculous!"''
** And they're being fought by a Fashion Victim ''Hero'' and a gaggle of boys in Fashion Victim ''Shorts''.
* {{Narm}}: Space Chief's first appearance, the "Roji-Panty Complex", and the classic case of misplaced stock footage where the Neptunians blow up a giant mural of Hitler.
* TheScrappy: Given the lack of parents, and the omnipresence of the kids, they fit this trope as well.
* SerialNumbersFiledOff: [[PrinceOfSpace Alien invaders? Check. Mysterious superhero with the word "Space" in his name dedicated to fending off the invaders in his flying machine? Check. Roving gang of Japanese children? Check.]]
* SpecialEffectFailure: Space Chief's [[strike: bulletproof flying rocketship car]] cardboard-mockup-finmobile-on-a-first-generation-''keijidosha''-chassis and the Neptunians' "pirogies of death".
** Also, the use of WWII StockFootage becomes even ''more'' painfully obvious thanks to a building façade being... [[UsefulNotes/AdolfHitler a bit out of style]], to say the least.
** The interminable final battle between Space Chief and the Neptune Men is very obviously just the same few short clips of them fighting shown over and over again.
* TheyJustDidntCare: The sound effect for the Mother Ship is of a ''propeller plane'', despite it obviously not having any propellers.
* WhatAnIdiot: A very average summer storm apparently presents enough of a threat to the electro-barrier that the good Doctor orders that the city's main defense be ''turned off.''
* WTHCostumingDepartment: One of the few areas where Space Chief actually has a leg up on Prince of Space is the fact that his outfit isn't quite as ridiculous - but it's still very silly looking. Ditto the Neptune Men; not nearly as goofy looking as the chicken men of Krankor, but they're pretty bad.
** When not in their clunky space gear, the Neptunians can be told apart from normal humans by wearing extremely heavy eye shadow and lipstick.