watch 01:38 The Loop (TV) Do you like this video? This article is a stub. You can help Ninjago Wiki by expanding it. Skull Dungeons is a place that appears in the Unknown Ninjago Second 2020 Installment. Retrieved from "https://ninjago.fandom.com/wiki/Skull_Dungeons?oldid=396116" Categories: Article stubs Locations 2020 Community content is available under CC-BY-SA unless otherwise noted.