Potential.
Ok - the game has potential, but the end product fails a bit. Here are some of my sugestions:
-slow it down - make it go faster "slower" :)
-get some more color,
-in later levels You could make the colors change (but not flickering - morphing), and it could go faster and faster until You have a disco show!
IT NEEDS CRAZY TECHNO DRUG MUSIC LIKE NYAN CAT!
I give it a 4 and it can be 10 with some work.