Add a sprite, add a sound that plays when you click it, apply it to the all button. Rules: 1) Don't remove any sprites. 2) Don't make a sprite too big. 3) Comment "remixing" before remixing. 4) Don't remix if somebody comments remixing. Other than that, go crazy!
Make it look something like this: https://scratch.mit.edu/projects/429209820
