I enjoyed this game until I realized the algorithm really plays against the player. I would consistently get to the end of each level only to need 3 more players or 30 more seconds which I was just shy of getting with the gems I had. Meaning, I would have to purchase a package to continue on. I did so today. Three times. I don't mind paying .99 or $2 per day to play a game. I realize they have to make money, but this game cheats players out of winning.