This was a very solid and well planned experience! I love the writing and really enjoy how the game allows you to feel clever for your decisions. Also, the hit noises were absolutely adorable.
I think there might have been a control issue, I'm not sure. Now and then, it would feel like I would have to press W twice to move. Though, it may be my keyboard finally giving out.
In the Options Menu, having feedback directly tied to the SFX slider would be nice. Either a timed playing of a sample or just at the release of the slider would be nice.
The speed of the game for the last leg seems a bit fast. I think it might be with the background scrolling by that quickly can give that feeling you get from playing Guitar Hero for too long.