Need to pay to play. This is a fun game- when you can advance. There are too many levels that require more moves than provided. Getting stuck on a level for DAYS is RIDICULOUS. Other similar games will give more options for boosters and power ups that this game does not. I refuse to pay to play and the game is not exciting enough to draw in for multiple days when you don't advance thru the levels. Pick another game that is more gamer friendly.