A extremely fun game to play. I love how you structure your levels and especially the mechanic! Your levels are really good, it gives me an intuited feel on how to play the game, making it a very smooth journey. The mechanic is massively fun to play with, and honestly very creative. I have never seen a game with this premise before, and it has a lot of potential
Your puzzles are really fun to figure out, providing how intuitive your level designs are. And I love the way you use the laser as a sound and music scrollbar, pretty genius!
I also have a few suggestions for you, I hope they help you:
1. The graphic is a bit out of place (e.g. trees inside a cave), but it looks incredible regardless.
2. The hold space to jump mechanic is a bit annoying to deal with, considering there are almost place to use it. I'm all for a cool mechanic, but it should also serve a function and not just there.
3. The way the character moves feel a bit slow (slow acceleration and deceleration). The jump are great however, I love the little extra hover time there.
(I don't usually give these kind of deep advices but your games are so good I must!)
Overall, a very enjoyable experience. 9.5/10