Nuckal Nuckal is a Ninjago minifigure introduced in 2011 within three sets , 2173 Nuckal , 2504 Spinjitzu Dojo , and 2518 Nuckal ' s ATV . He is the Skulkin General of Lightning formerly under Samukai ' s command and later under Kruncha ' s command . He is one of the two tertiary antagonists of the pilot episodes and a minor antagonist for the rest of the seasons . Description . Nuckal features a newly moulded , white skeleton head with Light Nougat spikes on the top and a metal eyepatch over his right eye . He wears a black pauldron , that has blue spikes coming out from the sides . Nuckal ' s body is exactly like the other Ninjago skeletons ' except he wears a blue loincloth . His arms and legs are used by the other skeletons as well . Background . The childish and unintelligent General of Lightning , Nuckal serves under the command of Samukai alongside his companion General Kruncha ( whom he often fights with ) and commands the skeletal legions of Lightning . He made his first appearance in where he was seen laying siege on Kai and Nya ' s village , and snuck off with the map to the Golden Weapons after having argued with Kruncha . Later he assisted in the mining for the Scythe of Quakes at the Caves of Despair and also captured Cole , Zane and Jay at the Fire Temple while Garmadon seized the Sword of Fire . Eventually , he and Kruncha traveled back to the Underworld and guarded passage to Lord Garmadon ' s fortress , where Nuckal performed " Ninja Searches " on all cargo entering the fort . They were both imprisoned , however , when the ninja performed the " Tornado of Creation " , which locked the remaining skeleton army into a Ferris wheel - like prison , the two generals amongst them . In the Masters of Spinjitzu minisode , the two somehow escape their predicament and use the skull truck to travel to the Monastery and stole the Golden Weapons from the ninja , but the plan backfired and the weapons were returned shortly . The generals soon joined up with Wyplash and a few other remaining skeletons , and banded together and traveled to the Fire Temple . At the temple , they discovered a hidden entrance to the Underworld , where they attempted to release more skeletons and gain vengeance for Samukai . However , Kai and Nya apprehended their plan and caused the skeletons to retreat , trapping Kruncha and Nuckal out of the Underworld in the process . In Never Trust a Snake , Nuckal and Kruncha appeared as " substitute teachers " for a boarding school for bad boys , but were tied and gagged by Lloyd Garmadon and Pythor P . Chumsworth when they invaded the school . They were freed by Cole , but made them promise to leave Ninjago . Nuckal appears with his friend Kruncha in the episode Tick Tock playing rock , paper , scissors , until they see Sensei Wu and is scared off by him . He next appears in " The Royal Blacksmiths " in the crowd during the Ninjago Talent Show , booing the ninjas next Kruncha . He also appears with Kruncha in the Episode " All of Nothing " , when Lord Garmadon sends the Skullkin at the Serpentine . He made an appearance in " Day of the Great Devourer " participating in the " Take back Ninjago Rally " wearing a hat with fruits , while dancing to " We want the Snakes to Slither away ! " . In " Double Trouble " his cotton candy was stolen by the Bizarro Cole . In " Ninjaball Run " , he and Kruncha participated using the Skull Truck . They performed adequately , using their large vehicle to their advantage . When they realized Lloyd and the ninja were working together , they shot out a hand with a chain to grab onto Lloyd ' s Ultra Dragon . Lloyd was spun out , but the truck was still connected to the dragon , via the chain . The chain wrapped around a tree , which the truck rammed into . In Wrong Place , Wrong Time Nuckal sees both the Kais , but says nothing . In The Invitation he and Kruncha partake in a Slither Pit fight .