I was vibing to the music and the visual effects. It was a hard game and I couldn't get the high score. I also noticed that the difficulty did not reset when you play multiple rounds. Overall a great game, thanks for making it!
Unfortunately some bugs affected the gameplay, I'm aware of all the ones you listed and in the new version they are already fixed. Glad you still enjoyed it. I hope you'll give it another chance when I release the next version soon!