This is very well polished, great job!
I really appreciate the option to skip puzzles, there were a few that I got stuck on that seemed a lot harder than a number of the later puzzles. It's great that you gave people the chance to keep playing!
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Thank you! Yeah, the option to skip puzzles is pretty necessary, since we opted not to do a level select or have multiple puzzles accessible at once, because we wanted a linear connected world for thematic reasons. Also, when ordering the puzzles I purposely didn't put all the hardest ones last in order to mix up the pacing to hopefully be more pleasant to play, and to group puzzles with similar ideas together.