Fantastic game! Looking great so far, the concept Is amazing and I love the design of It. The soundtrack Is smooth and relaxing for the early levels which Is fine and pretty neat, maybe a more stressful or "heavy" soundtrack as the level goes up could be a good idea. Also I didn't clearly knew at the beginning how to move In the menu (which Is by the way, a cool looking menu) but It need some indications how to proceed through It.
Wish you all the best,