At some point in the game you won't be able to proceed further without buying things. It just gets too difficult. Was a great game and had so much fun playing it but only in the initial stages. Doesn't reward the player enough to continue playing without actually buying something. Also I never could join any team as it always said "the team has too many requests". So half of the game fun is destroyed. It's a shame that I ended up uninstalling it though I loved the game play.