Hi there jakes! Mhmmm there is a score system in place you must shoot the people...but it's that that I didn't mention it anywhere.
By a scoring system you mean an high score? Or something else? Later when I will build it for Android I intend to implement the Google Play API that way the player will have challenges and all kind of cool stuff.
If you have a suggestion just tell me!
I will definitely take a look at your game and leave some feedback.
Thank you for your intervention!