Subway: Good Cracks vs. Bad Cracks - The Rubik's cube

To promote their Taco Sub, Subway Norway launched a set of innovative pre-roll ads for Youtube. The Taco sub is, thanks to the cracking noise from its nacho chips, the first sub ever to make an distinguished sound when you eat it. To better illustrate The Sub with a Sound, McCann Stockholm built a narrative around "Good cracks vs. Bad cracks". Good crack obviously being the nacho chips. When done right, even a film about a sandwich can become truly unskippable.