Nice game! What I really loved most is the fact that it was your own guitar playing, it's so cool. Some suggestions, maybe you can keep the pixel size consistent, eg drawing a smaller item individually instead of just resizing it. But I love the colors and overall aesthetics! The mushroom jumping before the last stage was a bit hard for me, since the jump/fall effect is a bit too fast :") Even so I enjoyed it and still felt its coziness! :D -Hon