The premise is simple: use your thumbs and tap on the screen to prevent the dark ninjas from touching you. Once the rage bar fills up, consecutive thumb attacks can be launched on the next unsuspecting dark ninjas. There are some achievements to be claimed as well, but frankly who cares as long as you kick some ass with your thumbs?
Mindless fun for those who want to pass time while transiting or waiting for something to happen.
The application is now available on the Play Store.