Seems like some of the ambient audio tracks kept starting without stopping. It stops once I move on from the Spaceship, but starts again shortly after.
That aside, menu is fantastic and the gameplay is everything I would ever want from a speedy precision platformer. Just that I am not someone who really plays precision platformers.
I played up till a little past the first introduction of the blue lines (or whatever colour you usually play it as, the number of colour palette choices was pretty crazy), but everything up till then was surprisingly really intuitive to understand. Love the star fart key blocks teaching you that you can fart to go downwards faster too.