My second attempt is in early stages, feedback and help are recommended:
http://www.flowlab.io/game/play/1084668
After a few seconds I figured out that you can shoot the guy. An explanation would be nice, controls, movements, background, intro.
If it is just a tech demo to point and shoot: It works 
Thanks, I barely made this a couple of days ago so it’s not done yet.
As of tonight, the second offical FPS test is finished!
In conclusion, on this game engine, mouse to move cross hairs is not recommended as because it is very difficult to get the camera settings to be properly adjusted
Definently different than mine. Neat Aspects!
You could use the same features for a Tower Defense.