This is supper polished! The way the menu slides for navigation is great, the little bits of juice from the impact of balls on things is great, the SFX and music work, and visually it's cohesive.
It took me a while to figure out that you want the balls to hit the matching hexes. I think this was mostly because this reminded me of pinball, where usually hitting pretty much anything is good, and the way you lose is of the balls drop.
I think what might help would be to make the balls hitting the wrong color have a more negative impact - like a flash of red/screenshake/and a big buzzer noise or something.
Cool little jam game! Well done.