As a Game Jam entry, it is a nice game: the physics are fine, the goal is clear, even though I'm not sure what the chalks did when playing (I've read some of your answers and now I know it is to power up the shots ^^)
As a Game Jam entry on the theme "Loop" though... I didn't really feel the theme anywhere unfortunatly, although there's definitely something to be done with an 8-ball and the infinity symbol, good catch on the connection here.
Don't get me wrong, I had fun! I just wonder if the game might be off-topic. Regardless, good job, at least you submitted something that works and is entertaining in time! =)