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.
Scrappy Mechanic: The balloon ride and the submarine-steering scenes. The fighting could also be considered this, since this is an Adventure Game, but most of the time it can be skipped by using the "sucker punch".