I really liked this! A really good narrative for the theme, and it was well polished, with the combat feeling responsive and satisfying to do :D And as others have said, the different versions of the music were great and really set the mood. I loved that the music would fade to hear the ticking in the last 10 seconds of a run.
I'd love to play a longer version, especially if there's more mechanics to learn so the player has to kind of optimise the perfect run in order to do it in time! Well done!