Hey looking good so far. Just a little feedback;
1. The WASD controls don't seem to work unless the game is full screened. (also listing the controls on the main menu would be a huge help)
2. The boundary box for the sword is a square which means when you reach the corners the sword kinda stays there till you move far enough and it feels a bit clunky. If you can change that boundary box to a circle I think the sword will feel much nicer to move around :)
Keep up the good work, can't wait to see how it develops! :D