Orca Mega-Fortress of Darkness is a character version of the card "Orca Mega-Fortress of Darkness".
Appearances
Yu-Gi-Oh! Ultimate Masters: World Championship Tournament 2006
In this game, Orca Mega-Fortress of Darkness appears as one of the Limited Duel opponents; it challenges the player to defeat it using a Deck whose monsters are not WATER-Attribute.
Deck
Contrary to this Limited Duel's restriction, Orca Mega-Fortress of Darkness uses a pure WATER Deck titled "Rhythm of Ocean".