Good gameplay idea, but the execution could use some work. The game looks great, and the background being in sync to the music was a cool touch. However, the controls were very fast and slippery so I felt like I did not have full control over my character. WIthout a health counter I did not know how many hits I had left to survive. Also, for games like this you will want to put a strobing light warning for the background suddenly changing colors.
For people who are wondering, here is a screenshot of the game: