Nice art style! I think it would have been cool if you had to attack on the beat. Somehow, I felt the urge to perform the slash attack in rhythm (probably because of the soundtrack). All in all, though, it's a solid game—I didn't encounter any bugs.
Yeah I was trying to sync the attacks/jumps to the beat. It is sorta in rythym on the downloaded version, but I was so stressed by the time I had everything in a sort of done state that I didn't bother going back to fine-tune everthing.