Ok let's start by the positives : this kind of game can always be fun but its tricky, it all depends on the feeling of the motion the feedback, the weight etc...
And sound design is a huge part of that, having no sounds for a game like that is a big mistake in my opinion.
That being said, I also quickly realize that if you don't move at the begining the ai always move on the side and you just have to go straight and score, rince and repeat forever.
So i just wish the game had a better AI, sounds and maybe some crazyness with the ball.
Also i din't got the gambling theme at all ?
The art is basic but i think it works very well