Hello, This is the game Im working on right now. I use following elements of HTML5 api: fullscreen apiaudiocanvas (2d) Game features up to now: HP for ship and enemiesScore counterPowerups ["quad damage","fast bullets","multiple bullets","exploding bullets","homing bullets"]volume control (keys - +)mute / unmute (key m)ship movement (asdw / arrow keys)fire (spacebar/mousedown) url to current version: http://info.wsisiz.edu.pl/%7Eolszewsm/shooter_03