Click the flag and you use W and S for Left paddle and Right and left arrow keys for right side. When one person gets to 10 points a second ball will come to make it harder.
Thanks to the channel coding with Chris for the tutorial and if you want to make it yourself the tutorial link is here: https://www.youtube.com/watch?v=yOEOoPl8x2o&list=RDCMUCPIvBdOsV6VPpzXsAmWN89w&index=7
