for player 1: click up arrow to move your paddle up. Click down arrow to move your paddle down. (super simple) for player 2: click W key to move your paddle up. click the S key for your paddle to go down. (ps. you don't need to capitalize the letters player 2!)
you need 2 people (obviously) and 1 computer. The reason why its hardcore is because need 0.1 immediate reaction, and also because the ball is super fast!!!!!