Thanks so much for giving the demo a shot and giving so much feedback! That's really helpful.
I'm curious how far you got into the demo?
Some quick responses
1) the map is very much "placeholder" it's awful and needs a complete rework :)
2) I really like the lightning personally, I find it very impactful... but it's a pretty common thread in feedback that people find it jarring, so I have a few ideas I'm playing around with tone it WAY down. I hope to have a much more "friendly" implementation in the next update!
3) Thanks for pointing out the bugs! I fixed the sign/crash bug already and will try to hunt down the level bug and jumping bug you mentioned. Being my own QA rough :(
4) Will be taking a look at the rest of your suggestions and feedback as well.