Simple...
People will hate me for this, but this is a review from a more professional level.
I hate to say but I was unimpressed. It was too short and easly got old. The graphics were enjoyable, and it was challenging, but it's the most simple and repetitive game I can say I have ever played. If you had put more tests, maybe four, I would have liked it because it has potential to be something more. Work harder to make a game built on this, with more tests (and not so simple) and then it would be addicting and enjoyable. It's good for a prototype, but nothing more.
People will mark this as a useless review, but I'm not trying to be a douche, I just believe this should have been something more. Sorry for the low score, but reviews are meant for individual opinions, not what people think you should rate, right? I DO believe your next submission will be better though, you have the potential, so just work harder and you'll make a great game im sure!
=)