I like this frantic approach to pool, it's an interesting use of the theme and easy to understand the gameplay. You definitely feel under pressure while playing and I liked the penalty for sinking the white ball, which you could then use against the black ball.
I think having the hit indicator graphic be behind the ball would make it feel more like actual pool (most pool games do it this way) and increase the challenge a bit. I feel like the music didn't really fit. The count down at the start is slower than it needs to be too.
Nice job, especially for your first 48hr jam.