Did many people get stuck on certain puzzles? I ask because I feel a bit thick and disappointed for having to look on the universal hint system a couple of times so far. Without giving spoilers away for people that haven't played it, I didn't get the pressure one on L5 or the code one on the zeppelin platform which is where I am right now. Although I knew/suspected where the code was to be found and I was right about that.
I'm not even sure how fair the latter puzzle is, it's pretty obscure. Do you think?

[Karmillo]

Dont worry. even though you may have suspected it, probably thinking about how you would have had to guide yourself through those tediouse walk paths would have driven you to UHS just to make sure....