The Pirate King, Cortez together with King K. Rool rules over the Seven Seas and the Kong Island with the treasure of gold and the Golden Bananas and of course the 6th Crystal Star are locked in the treasure chest.
Cortez, who was ally to Mario, is possessed by Devil Snake, the demon beast from NME, so Cortez obey K. Rool until Mario cut Devil Snake and Cortez is once again a ally for Mario.
Mario holding the fire sword. [link]
Donkey Kong sprites by