I didn't pay
I didn't pay for the game, this game is amazing and offers 50 free levels and I enjoyed playing those 50 levels.
While the developers put months of their time developing this game that kept me enjoying for a long time, why should I down vote it?
Can anyone answer me???
It doesn't matter to me whether it has some extra levels for real money. If I can't afford I won't buy, in every aspects free elements of the game is still very enjoyable.