Dragon King's Helmet

This ancient royal helmet with two long horns (Onaga's Helmet, the Dragon King's Heltmet or sometimes, the Crown of the Dragon King) is the most prized possession of Onaga the Dragon King, the legendary emperor of Outworld. The helmet was shown not worn and fallen after the player defeated Onaga and he exploded in the arcade mode of Mortal Kombat: Deception. It was also featured as one of the collectible relics in the Konquest mode of Mortal Kombat: Armageddon.

Some say this helmet helps protect the Dragon King's only known weak spot.