Kruncha & Nuckal are Samukai's Skulkin Army's generals, and single Darkley's Boarding School's teachers in LEGO Ninjago: Masters of Spinjitzu. Kruncha is the Skeleton General of Earth, and Nuckal is the Skeleton General of Lightning. Kruncha was Samukai's second-in-command. After the death of Samukai, Kruncha became the new King of the Underworld. Later, they are seen partaking in the "Take Back Ninjago" rally. Also, they are seen when the skeletons are attacking the Serpentine.