The game is pretty cool. I got a little annoyed when the coach said my teammate was better than me, especially considering he sometimes just stands under the ball and then moves away at the last second, letting it hit the ground.
Funny enough, I was also thinking about making a beach volleyball game for the jam, but I ended up going in a different direction. This game fits the theme really well in every aspect.
I'd love to see a co-op or multiplayer mode where players can compete against each other as opponents.