Warning: Toy intended for children over the age where it will make their brains explode.
This baby is clearly insanely frustrated by his inability to express the emotions welling up inside of him at the sight of those colored balls appearing from nowhere. He could cry, but that's not right. He isn't sad, and he doesn't need anything other than to find out what the hell is happening. He could smile, but that seems so ridiculously insufficient considering the magnitude of the situation. What he really needs is the verbal capacity to say, "Holy crap, Mom! Balls!" But since he can't talk, he'll settle for staring in gaping, open-mouthed admiration that's so cute you can almost forget it's slightly unnerving.