this kicks ass. I got to the third area and got my first death bc of accidental overuse of <UPGRADE 2> it was awesome. I think if the movement was aligned to the rail more cleanly (reset to center of rail unless pressing directional input) it'd probably feel better but otherwise I ain't got no notes. Fantastic job on this. I stopped playing after aforementioned death because I ain't got too much time but I'll probably come back and finish this at some point it was dope. I really like your take on the theme!
edit: wait I do wanna add that some more visual clairity on the warp point barriers would be Pretty Awesome; would have to give them a more visual identity which doesn't wholly fit with the theme I guess but you could probably figure something out.