This video shows you how to get the skull that is hidden in Bad Piggies Rise and Swine Level 2-19. The skull is located above the starting grid. Speed along in a normal-looking cart, shooting your grappling hook at the edge of the skull’s platform. The cart will loop around, but you may have to manually release the hook to reach it.
If you have a different strategy for completing this level feel free to leave a comment below.