These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
TAC's theme. An instrumental is frequently heard, but a vocal version was sung by TAC after Minami left.
Bizet's Toreador Song from Episode 10
Debussy's Claire De Lune
Once again, "Fight! Ultra Seven", heard when Ace destroyed Ace Killer with the Space Q.
Fair for Its Day: Tsuburaya wrote the Ultras with no concept of gender inequality, thus the reason both a male and female host were chosen. However '70s audiences couldn't handle this, especially the kids.
Narm: Jumbo King is not very scary, creepy, or well made. And this was the last of Ace's Chohjuu.