Halftone images are composed of dots of varying sizes, which when viewed from a certain distance visually combine to generate a recognisable image.
To understand BubbleToons, all you need do is imagine an image composed of bubble wrap, where each of the bubbles is of an equally variant dimension.
Of course the bubbles are scaled up in size compared to that of a newspaper halftone, but the principle is the same.
The biggest difference is that when you unwrap your product, and separate its wrapper, you now have an image with which to play. Bursting the bubbles selectively, you can destructively alter the wrapper's image according to your whims.