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.
Wandabada wandabada.... That's just the last part of the tune (M.A.T. Theme). Part I sounds suspenseful, Part II is slow, like a 007 leitmotif by John Barry, Part III sounds like a Western tune by Ennio Morricone (no wailing vocal, though!), then on to the (much faster) Wandaba part. Is Tohru Fuyuki a genius or what?
Fair for Its Day: Even though the show kept her in the background, M.A.T. Team Member Oka was one of the toughest teammates in any Ultra show of the era. How tough? She singlehandedly fought off her Brainwashed and Crazy male counterparts not once but twice in the same episode.
"Funny Aneurysm" Moment: Not funny but upbeat to begin with, the Theme Music Power-Up's name becomes sad in retrospect considering Ultraman Jack's defeat (and near death) at the hands of Black King and Alien Knackle happened at twilight.
Narm Charm: The English dub of the first four episodes is either this or utterly unlistenable.
Suspiciously Similar Song: The opening theme is essentially Koichi Sugiyama's(yes, that Koichi Sugiyama) version of the original Ultraman theme song.
What an Idiot: Why, oh why, no matter how dire the situation, did you fly into the sun, Ultraman? Who do you think you are, Ultra Seven? Go back to Earth, indeed!
However one could argue that Jack was simply trying to absorb more energy from the sun since that is how Ultras stay alive.
Fine, except Seven (who, by the way, is the only Ultra who successfully did just that — Episode 25 of Series/Ultraseven) doesn't even have to share a human body with anybody else; Dan IS Seven in human form, and even he had to deal with extreme cold, a missing Ultra Eye, and energy spent just transforming and flying off. Plus, Jack couldn't even let himself be visible until he "possessed" Goh (check out Episode 1), and you have a severely weakened Jack in a polluted Earth with an enemy that wore him out desperately trying to do something a peer of his with no such problems barely managed to do, and you have a recipe for disaster.
It should be noted that Ultra Seven can last longer in Earth's atmosphere than virtually other Ultras in the franchise save for Gaia and Nexus, so naturally it would make sense for him to store more energy in his body. Ultras have required to possess humans to stay on Earth safely, Jack really isn't that different. Not to mention Jack is the only Ultra in the franchise to actually survive being torn to shreds (while being frozen no less).