Hey Jerry, thanks so more for your feedback!
These are all very valuable notes, and we'll take them all into consideration and think about these changes before a final release.
Our goal definitely isn't to make the player have any sort of frustrating experience (aside from trying to figure out the actual puzzles of course), so we will be working on how to better polish the player experience to have a more relaxed and enjoyable time.
Thanks so much for your support! We enjoyed your game as well. :)
-D