Nice game! With more levels and maybe some story, it could have lot of potential. Personaly, I would stick to the puzzles rather than speedrunning. I like the art style it's cute and cozy.
I saw your game in development on Discord. I was excited to see what you would create. It's a very beautiful game, but the levels were too easy for me. If they were harder, I think it would be a lot of fun.
Thank's for the comment! I wanted to make it faster, but the flickering lights were only worse. I need come up with better implementation of visualising sound/echo.
Btw player speed is getting higer after each level due to a bug. That maybe solves the issue a little bit.