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.
Signature Song: "Man on The Silver Mountain", "Long Live Rock 'n' Roll" and "I Surrender".
Also "Stargazer", which more often than not shows up in lists of best metal songs of all time.
Catch the Rainbow may also be considered this, due to being played regularly on their performances, including the bands name, (although, to be fair, most of the songs Dio wrote do,) and being generally awesome.
The Woobie — George and Geoffrey, with how annoying Zippy is.
Uncanny Valley: Zippy and George are obvious muppets and thankfully come off as fake enough they look alright. Bungle however is a person in a suit, and aside from the freaky design, his movements are realistic enough to come off as unnerving.
Angst? What Angst?: Peter shows nearly zero angst about his mother having to be hospitalised for lack of oxygen.
Big Lipped Alligator Moment: In the airport the children decide to get their pictures developed of the rainbow. Instead of asking the sheriff if they can, they opt to duck and hide leading to an elaborate chase around the airport. The BLAM comes from the fact that cartoon sound effects are added in and are completely out of place. The entire film basically stops so the Sheriff can get one-upped in slapsticky ways.
The strange girl in the tree the kids meet when they get dropped in Kansas. She creeps them out for a couple of minutes before her father drives them to the sheriff station, talking about how she never gets out of the tree. A lot of time and attention is devoted to such an insignificant character. She also gets this odd line which solidifies her BLAM status.
Girl: You fell out of the sky.
Mike: You saw us?
Girl: I saw colours.
Canon Sue: Frank seems to be one. He's a wise old guy full of fun magic tricks. He gives a couple of moving speeches to the other characters, he's able to rescue them from the news crews at the airport, he picks the lock to the pawn shop and gets several other "way to go, Frank" moments. Surprise surprise, he's played by the director Bob Hoskins.
Designated Villain: Dan Aykroyd's character. He's essentially there to be kind of a dick to the kids and prevent them from developing their pictures.
Narm: The airport slapstick scene, especially when the cartoon sound effects start playing.
Padding: The extended scene in the airport essentially is there to pad Dan Aykroyd's screen time out.