Love it. Im really impressed with of fast you learned the game engine, and on top of that, manage to implement what you had in mind.
I think there is a bug though. When you clear a ball, and it spawns to the right and falls down, (for me, this happened alot and i got screenshot proof on your discord) the balls stack on top of each other pixel-perfect and wont topple over. If you work more on the game after the jam maybe the balls could randomly spawn on the x-axis to make sure this doesnt happen :D