Thanks for the kind words! It is a big game indeed! There will be a lot more to do in further updates (just to give an idea, the upcoming update has roughly 3 hours).
You're totally right about the tutorials and inputs. This version I submitted is also outdated, but I wanted to sent it regardless.
The new version has a completely new menu that replaces the one you saw in the demo, and it has key bindings so even if you miss out on tutorials, you can get an idea of what buttons you can press on each gameplay.
I'm also relieved that you liked the pacing and design of the first level! (NGL it's scary to start out with a bullet hell).
Also, thanks for reporting that bug! I'm going to try it with the new menu to see if it still happens.
Finally, we have a form for requesting Steam Keys for the upcoming version if you're interested: https://forms.gle/KdaA2gdVLYFLrgrMA 🌟