This game has a lot of potential, but I'm truly disappointed and got extremely frustrated. It looks like the game is trying to get me to pay money to win and continue playing. It's not even about skills, just pure luck or more boosters. Some levels are physically impossible to win. I got permanently stuck on level 409 and a couple of levels before for days. It got ridiculously hard and not fun anymore. What's more disappointing is that I see so many similar reviews and no change at all.