First things first, the music is actually really good. The lofi track at the beginning is really chill and groovy, and the gameplay music is quite energetic fitting the theme of the game. I also enjoyed the gameplay as it does keep me on my toes, but I do think the spike moves really fast especially at the start of the game. Maybe you can make the spike move slower at the start to help players ease in to the game before you start challenging them even more.
Overall though, I really enjoyed the game and I do hope I can check out more of the music sometime!