Use wasd for player 1 on the left and arrow keys for player 2 on the right sometimes you have to try to make the ball hit the other wall for the bot to work. Press S to start countdown to make it competitive or don't press S and have it be infinite, your choice.
Thanks to bobganda for the original project Sandy Smashers. This might be my best game yet make sure to check out the original incase you don't know player 1 in me and player 2 is Supersam_201st so check his games out just click on my icon/account and click on following and he should pop up.