This game is great, but I really wish all the notes matched up exactly with the music. Some of them are definitely off my small amounts - the more complicated songs are almost impossible because you generally have to look at the notes rather than listen to the music.
Original concept and ideas, a little quick but quirky and very intriguing; was going to give it a 4/5 but changed my mind to 5/5 after seeing how responsive and efficient the developer is!