Definitely see @Miniature Giants' feedback.
The game was fun for the first little bit, but became rather repetitive. I think I actually managed to find the hole, or triggered a reset because I was teleported back to the start with a shot counter of 0.
I don't really think it needs to be much more different, just either a smaller map, or different kinds of obstacles to break up the gameplay a bit. Maybe something like Radioactive Zombies patrolling certain areas looking for victims that the ball can bounce off, or maybe an off topic scoring system for how many you can hit?