The Dragon King is the true main villain in the video game Real Heroes: Firefighter. He is a malfunctioned animatronic dragon that can breathe real fire.

After Probie rescued several people of the Lair of the Dragon Ride, Probie confronts the Dragon King. At first, Probie rescued the people from the malfunctioned carnival ride and helped them escape from the dragon's grasp. Probie then cuts the four ropes and started to battle the Dragon King. After Probie "slays" the Dragon King by shooting enough water at him, the Dragon King collapses and dies.