This is a legitimately good game, let alone one made for a 48 hour game jam. The physics feels really good, and each of the balls feels unique enough to be worth inclusion. I really love the mechanic of being able to switch between the balls mid flight, allowing you to use the heavy smashing ball in conjunction with the smaller far-rolling ball. The boxes also feel very satisfying to smash. Won't be surprised at all to see this as a finalist for the game jam!