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.
The Atari 800 version is an original song (until it starts playing Queen about four minutes in), but quite catchy nonetheless.
Fridge Logic: If Maria is the housekeeper, shouldn't she be the one doing the tidying up?
The plot is that ordinarily she would, but the party left the place in such a state that she went on strike.
Of course, this doesn't explain why Willy doesn't just say "You're fired, now get out of the way so I can get some sleep."
Nightmare Fuel: That big green face with the star on its forehead on the "The Chapel" & "Priest's Hole" screens.
That One Level: The words "The Banyan Tree" strike fear in the hearts of old-time gamers to this day. "The Nightmare Room" (just to the east of "The Banyan Tree") also gave players the Willies.
Ever so slightly subverted, in that there is absolutely no reason to traverse "Banyan Tree". The left hand side goes nowhere, climbing the right side isn't an issue, and you can just go the long way round if you're desperate to get there.