The scope of this was really impressive! As someone who isn’t used to first-person platformers I really struggled with the controls, but it was still fun and immersive enough that I made it to the end. Thanks for making it possible to just side-step most of the traps in the last section :)
I don’t like having the rocket jump as such a central mechanic because it feels clunky to use, and you have to constantly look at the floor to trigger it. I would probably experiment with having a dedicated button/action for it.
In some of the vertical sections it wasn’t clear where to go after you died, because the paths are often indicated by coins which are now gone.