Fun & challenging game, some anomalies but nothing like other games. For the most part it let's you play to your abilities and how you use your power ups, but don't waste your money upgrading, I spent money for a new car but there doesn't seem to be no difference in game play. Taking it to 2 stars!! Algorithm has gotten pathetic, HEY DEVELOPERS IF YOU WANT US TO SPEND MONEY ON THE GAME MAKE IT WORTH IT!!!!