I'm going to give it a 2 star due to the fact you HAVE to PAY to win...I've been playing for quite a while and it takes a little bit of time to get ur pro driver...u really have to play FOREVER to get any upgrades after spending ur coins and doesn't include an outrageous diamond. Let to upgrade your bike even on pro....seems like they throw a glitch she. Your on a roll on ur combo that the red or green marker shows up and then stops and then flies by so ur combo goes to nothing... Uninstalled