Dark Nebula Castle (ダークネビュラの城, Daaku Nebyura no Shiro) is the base of the evil Dark Nebula Organization.



The castle is generally in dark clouds. There's a stadium in between 2 towers.


  • There is a stadium hidden beneath the sea around the castle. This is where Gingka first felt the wrath of Ryuga and Lightning L-Drago 100HF.
  • There are many traps inside the castle controlled by the AI Merci.

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