My god, I have the worlds most solid sense of stability and a strong stomach but the visuals here were so dang motion sickness inducing. I was not enjoying feeling like I was swirling around the entire time... Overall, I felt it was a bit busy for a timing game. maybe ok at higher levels to have all those particles and things cluttering up the window but at easy, I think the foreground should be fairly empty. I think your little dudes fly in too abruptly most of the time. I could manage it, but there was almost 0 time to react to some of the patterns. I understand that they're the same everytime but that doesn't mean they should have too little time for a first time runthrough to be successful.
Overall, I liked it! Pretty nice music and a good vibe =D
Good work!