It feels good when you move fast and go crashing/diving around.
Some design choices feel odd like having to dive to break glass when you are going at full speed, but the water diving is nice. It doesn't feel like it gels with the theme, but I like your music and the glass crashing effect.
The wall jumping feels a bit finicky at times, at the part just before you go to the barrages of doors, when you need to wall jump between two yellow walls, it feels like you always fall down if you keep on jumping from one wall to another. I made it through by simply jumping over and over at the left wall instead of from one to another.
Also, when diving, especially at the end of the game, a weird circle appeared on the center of the screen, like some sort of glitch.
Overall, interesting platforming movement.