The game felt interesting, but I couldn't kick the ball - every time I hit Space, the browser would scroll down.
Maybe its a Construct issue, that the game itself becomes a part of the browser, so it does not detect any difference between the game and the browser.
2 possible solutions for this would be to either, introduce a full screen button, or, change the "kick" button the something else than the Space key. (I made such a modification myself - I wanted the ESC key to Pause my game, but it would always exit the full screen mode in the browser. Had to change it to the P key).