Double-click flag so that the music syncs! Badcat is a character from my project "Happy New Year in the most unexplainable way ever": https://scratch.mit.edu/projects/1260754964/ I changed the arrows to have the spark too. In the sprites of the arrow, I have some prototypes for the player's arrow.
I just decided that he should have a ruler (because it fits him) and a spark in his eye (because it just looks cool ok?). The spark looks good in the project itself. Also, near the end of the song, the background starts breaking. If you want, I also added a feature that allows you to hit your arrow keys so you can "try" to play along as well.