Also, can maybe do a html page for each menu, then naviguate between them with <a> buttons?
-Yes, I think it is possible because this project breaks the boundaries of possibilities again.

The future I will make controls for mobile devices, if necessary.

And, I will also write various possible styles for each page.

UI is important.
-I will try to work on this element, I just have to create a lot of content myself and this is not easy at the moment, since the demo version was just a working puzzle. in the end, it turned out to be a rather complex idea due to the level system, if you want you can take this content to yourself, it is freely available.