So glad you enjoyed it and really love the feedback. I don't know much about how mac and windows are different but what you describe sounds like the post process I used to create the fog effect. It's an unbounded postprocess that uses the culling and depth. Very very very cheap on resources so very efficient for creating fog. Not so easy to control color though but still in that regard. My guess is the mac doesn't read it the way its intended and that causes the issue you were having.
I do want to expand on it so that will be something i will have to look into. I totally agree with you, there is not enough feedback for the player to know where to go and iI will definitely improve on that.
I'm actually seriously thinking about remaking it after the jam results but planning it properly and rebuilding from scratch.
Initially wanted the shop to have more than 1 body. You could have a variety to choose from and then the story would also develop even more. Different bodies could have different skills or abilities etc. But when it came to doing the coding i realized i would not have enough time for that hahaha.
Thanks again for playing i really appreciate it and if you tune in on my channel every now then I'm sure you will see me remaking this soon. :)