So move the ping pong bat with your mouse and every 5 points you go to a new level if you mess up you have to restart so that's why it's medium.There is a chance the ball could get stuck in the corner and you can't press the flag to fix it so probably get of the game and go to my profile so you can play it again. New levels coming out soon only five levels at the moment and I will probably make it more harder to go from a level.
