Well guided but not too simple, well written, great game, congrat! This had been a while since I last wrote aside every info on a paper. I really enjoyed playing it!
@sciguy1121 > You got "Perfect" when you release your mouse on the beat (or when the two circles around your cursor meet if you prefer the visual way). The more "perfects" you get, the higher your score is, and you get better chances to get "good" special cubes (time+, /2, ...).
@heiniken > I don't understand how you've been blocked or why you couldn't see the DNA strand, but yeah, you can't escape a level except by clicking "pause", and there is no pause in tutorial level. You can just F5 the page.