I played with a friend of mine and it was really fun, especially since it was made in only 3 hours!
I never thought about making a 2 player game for a jam like this. It was really fun, I think if you made it harder (for example by having there be multiple balls or something) as it went on to shorten the lengths of the matches it could be a really good game!
I also really like the movement effect on the ball!