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.
Harsher in Hindsight: The near crash of the space shuttle Columbia, until Ralph catches it and brings it down intact.
Special Effect Failure: The sea monster at the end of "The Devil in the Deep Blue Sea" is a laughably bad hand puppet that thankfully only appears for a few seconds.
They Wasted a Perfectly Good Plot: Ralph losing the second instruction booklet. There could have been a ton of scenarios involving Ralph learning the full capabilities of the suit, while still maintaining the mishaps that made the show more than a conventional action adventure show (when Ralph begins to read the second book, he displays the ability to shrink and becomes smaller than an ant, but can't figure out how to return to normal size), but he loses it by the end of the episode.
Debatable; letting Ralph kept the instruction manual meant that he'd no longer have a reason to be incompetent at super-heroics, and thus risk turning him into a Boring Invincible Hero.
Weird Al Effect: Parodies of the theme song, basic plot, and the goofy looking Hinkley are well known among people who were born years after the show ended and have no idea what is even being parodied.