You're suppose to click If you wan't to Restart the Cutscene to understand the Story.
but you have to wait for a while for the cutscene to finish and THEN you move onto The actual game.
i was expecting the theme to be actually part of the game
i was also a bit confused of the health bar..
Though, the controls are really smooth and I like how you just rotate around with the mouse!
I also couldn't really see any bullets from the turret. Overall Great game :] !
The controls and Speed of the game were the best part of it :)