@jordantanner Yes, you are correct. The speed of the enemy is the main factor in the difficulty but the other factors would be how large the enemy hit box is and how far apart the top and bottom boundaries are for the enemy. I have actually found when the enemies can move closer to the top and bottom boundaries of the screen, this actually leaves them open for more goals because they are out of position more. If you limit their movement to the centre of the screen they can be very proficient because they do not go out of a good defensive position. The game difficulty is something I wish I had spent more time on and if I ever release Pong Tournament Universe 2 I will do a lot more work on the storyline progression. Thank you so much for your comments I really appreciate it. Also, I love your game I have been showing all my friends. :P