I played this game when I was a little kid and spent hours just staring at the set of hats and guns that all angry birds have. I was so disappointed when I discovered that Rovio had removed all of those angry birds variations (like space, star wars, go ecc...) but I still managed to get again this game to finish it one time for all and I FAILED because I always block on the last level. At some point you need to fully understand the system of the game and your skills get sort of "limited" because to get better and beat the last level in particular, you must have a plan and find particular combinations of gears to win. With the game removed from play store you can't also make transactions in case you want some extra help, but that's only another kind of less important problem (for free to play players). I'm glad angry birds transformers still exists.