Thanks for playing and reaching the end!
I was worried the mechanic might not matter enough, I think I definitely should've designed levels more with it in mind. Maybe making them less linear with multiple paths and shortcuts or something. I could've been more strict on the time limits too, I made them intentionally lenient for most levels in an attempt to balance the difficulty but I think that was the wrong way to go about it.
Also yes I did make the music myself! Glad you like it!