"The game tracks how quickly you defeat the zombies, and, yes, you can submit your scores and check your ranking online. The process for doing so is almost as crude as the game itself - you send an automatically generated email to the developer, who adds your information to a Google database. So don't expect to see your scores in anything resembling real time. You'll probably be zombified before then. Through it all, try not to think too hard about how you dropped £4.99 on this monstrosity. Sometimes dead is better."