Impressive to get this kind of game running on web as smooth as it does! I really like the environment and level design, and the textures go well with the rust theme and the aesthetic you were going for, as well as the UI design! I think the music is really good as well but it kept cutting out for me and randomly coming back and then back off.
also I found it a bit difficult to judge where I would land after a jump, maybe zooming out the camera might fix that a little bit? or shadow to show where you would land?