I published my app. I request a review to more than 150 sites but only 8 of them give me a (good) review.

I can't reach the most famous blogs because I have to pay to bring on top of their queue.

Now, my app seems to be nice but I have only 65 users playing it. This 65 users seems to really like it because I can see there are a lot of games played tracked in my stats. A lot of users say that my app is "fun like Doodle Jump and very addictive".

So, what's the problem? Why only 65 people? In a word, how can simple games such "Doodle Jump" or "Flight Control" enter in top 10? What's their secret? What's my mistake?

UPDATE: I have a site describing my app.