The King of the Underworld is a villain that appeared in Wikizilla: Rulers of Wiki. He lived in the Under World and held Zippy hostage.
Wikizilla: Rulers of Wiki[]
Deathrock9, Slimer and Skele-Man McGee met the King of the Under World when they traveled to his throne room to rescue Zippy. However, he told them that they could only have Zippy if they completed three trials put upon them by the Nightmare Men. With the help of Nicki Minaj, they passed the trials and were allowed to return to Earth with Zippy.