I didn't add the how to play part yet, So if you are wondering how to play:
Use space or Left click to Aim with your bat, you can't move while aiming and time will also be slowed
Use space or left click again the unleash the bat
Your goal is to survive as long as possible, the energy bars retore energy which is on the upper part of the screen, the small boots will increase your speed for a period of time
Edit: Have just added the how to play part