Hello! Thank you for the constructive criticism and praise. :)
All of the ones you listed would have been included originally, including the weaker collision detection, but they were unfortunately left out due to lack of time.
Most of my time was taken up by working with 3d models and animations (and even then it's not as I'd like), and developing some features from scratch.
I have been using the Godot engine for about a month, many things were new during the development.
As I have time, the game will get menus and new functions. Also, the code will also need a little refactoring.