* CultClassic: The show is fondly remembered in Argentina, to quote: "it was the PowerRangers of our generation!"
* EnsembleDarkhorse: Alien Baltan, leading to many reappearances in other shows, and becoming one of the most iconic and famous villains in the series. Same with Gomora, who got his own show.
* EarWorm: That theme song for Ultraman is quite catchy.
* SugarWiki/HeartwarmingMoments: The episode "The Monster Graveyard".
* HellIsThatNoise: Alien Baltan's laugh, which is so distinctive that it has a high chance of resonating inside viewers' heads for eternity. It's even this trope ''in universe''.
* {{Moe}}: e.g., "Pigmon"
* {{Macekre}}: The English dubbed version of the original Japanese dialogue is not nearly the worst offender, but the differences are definitely noticeable.
** BCI Eclipse's DVD releases of the series, thanks to having the uncut episodes, show at which points the show was or wasn't dubbed - a Japanese TV episode is a couple minutes longer than an American episode, so where there were undubbed moments, the dialogue just ''switches back to Japanese, and the subtitles come on.'' Whether it's ''incredibly'' distracting or just ''really'' distracting depends on whether or not you know why it's happening.
* NightmareFuel: Dada and the Mummy ''will'' have you looking behind your back when you're alone in an office building...
** NightmareRetardant: ...until you imagine Muramatsu - not an especially big guy - ''tackling'' Dada to the ground and not even losing any momentum in the process. And locking him out, too.
* SpecialEffectFailure: Occasionally. It was made in 1966, and not everything's going to look good after 50 years.
* SugarWiki/VisualEffectsOfAwesome: Put it this way - it's 1966, and most of the crazy things you see in a typical episode would have looked good in a theatrically-released film. This was a ''half-hour kids' television show'', filmed in color at a time when there were barely enough black-and-white [=TVs=] to watch it on. They could've fudged things here and there, but ''didn't'', and wow does their effort show even nearly 60 years after the fact.
* TearJerker: The episode of Jamila.