The gameplay here is fantastic, the art, sound, and extra touches like screen shake and obstacle indicators really take it to the next level. I think some of the tileset could be clearer in terms of what is a wall and what is background, but that is partially just due to the palette limitation. I would also like to see a more strict failure or setback condition, but that can be hard to do with local coop. The gameplay would also work well as a rhythm game or endless running.
Really polished and fun entry!