Curious what the real differences are between CCS on a PC (via Facebook) and on an Android phone. I've had at least 2 levels not passable on a phone, but fairly easy on a PC. Main difference is UFOs and their behavior. I have UFOs I can select on Facebook, but they are not selectable on my phone (there only to buy). They also strike very differently on each device when they start out in the game (less random on phone). The game should play the same on all devices!