This is really great. I love the amount of interaction you can have once you realize you can jump over to the other side, and stand on your opponent's head, etc

This is really great. I love the amount of interaction you can have once you realize you can jump over to the other side, and stand on your opponent's head, etc. I also really like the beginning: the bouncing ball that continues to bounce as you slowly work out that space is jump and WASD are movement.