Thanks a lot for playing and your detailed feedback!
I did spend some time on the controller support, but could not get menus to work with controller.
I would say I did not put enough thought on the level design, I would definitely like to be more intentional (but I have no idea how to get started). The stairs part was the only place where I wanted the player to loop around to the stairs, but enemy placement is mostly random.
Sound I feel is very important, but I was learning a lot of new systems and while I started looking into audio at the end, I could not make it happen within deadline. Music on the other hand I am a year deep into the guitar journey and don't think I can do it on my own, I would probably have to rely on someone else or use an existing asset.
Happy to see that most players did not encounter any bugs and liked the simple UI.