Update to target SDK version for new android versions to be supported.
There are good and bad guys in the play area and your aim is to stop the bad guys. You can stop the bad guys by tapping on them. Each time you stop a bad guy, you earn 10 points. If you stop a good guy, you will loose points.
There are two speed levels, Easy and Tricky. In the Tricky level, the time you have to stop the bad guys is much less than that of the Easy level.
