Really neat puzzle game - love the soundtrack too! Hiding some parts of the puzzle so that you have to zoom is interesting as well.
I sadly had to stop after a few levels - I have a slight color blindness and I think for that reason the yellow/green colors hurt my eyes when I tried to differentiate between them :( I'd give it another go if you could maybe add a little more contrast between the different colors and the blue ones background.
Beside that - really great idea and execution ! Nice scope for the 3 hours too