I like the game in general, but it's unresponsive to when I press the keys and hit the enter button. I play it like a guitar because I have gotten used to that by playing "Frets on Fire". Either way, I like the game but because of it's immediate button response configuration, it's nearly impossible to win.
A nice trick to these is crossing your eyes till both pictures completely merge and then the blurry stuff is what you click. Much easier lol. My first score was 4007!