All you got to do is go through the levels without dying once or your progress gets restarted Use Left or Right Arrow Keys or AD to move left to right and W.Up Arrow, or Space to Jump.
The Music is The Great Strategy from Badliz For it to run smoother, use this link: https://turbowarp.org/582857350?interpolate&stuck (This is for Archival Purposes, this is the only copy of the beta of Scratch the Sprite I have)