A really fun game! I really enjoyed the gameplay.
First of all, the music is incredible. I opened the game and ended up sitting at the menu for about three minutes just listening to it, haha.
One suggestion: I think there could be some kind of penalty for not shooting the white planes, like losing your combo. Right now, when the screen gets crowded with red planes, I found myself just waiting for them to leave before shooting the white ones.
Loved it! Keep working on it! :)