Hi, thanks for playing and taking the time to write up your thoughts!
* I understand your frustration regarding the hints. The trickiest part of this design has been balancing the deduction side of the game with the push-your-luck side. I have a couple ideas I want to try, that I'm currently working on, to try to get the best of both worlds. I appreciate your patience while we work through this!
* I have something like what you suggest on my to do list. The current plan is to include a "flipped by" section in the tooltip so you'd be able to see if a card was flipped by a close call, or a magnetic money etc.
* The health door will be removed (it already is on my local version I'm working with). It was hard to tell what the locations would do to the game and it turned out that one with no money in it was not fun. Are there other locations that are troubling you or just that one?
* The increased exit cost will be reduced in the next update, I agree that it's way too expensive right now.