Hia
I have uploaded a customized version of Unity’s tutorial demo. It now includes a user registration system coupled with a global high score system (meaning you now have incentive to complete the level :P).
Also, instead of just collecting a card, you now have to save a hostage 
Later on this demo will be updated to include achievements, new characters and new levels but for now, see if you can get yourself into the leader boards…
Enough talking… Click the image to check out the web player for yourself 
There is also a desktop version available for Windows, Mac and Linux from the same link.
Enjoy