Odin is a boss from Final Fantasy III. To challenge him, the party must first obtain the Nautilus airship, which is able to act like a submarine. The party can then enter the Saronia Catacombs after diving underwater. After winning this battle, the player obtains Odin as a summon. In the 3D version, this is also the only opportunity in the game to obtain the spear Gungnir, the most powerful weapon until the end of the game, with the class-mastery weapons and the Ultima Weapon. The spear can only be stolen by a Thief with a Job level of 71 or higher. The weapon also has a 0.3% chance of being dropped, giving the player the ability to obtain two Gungnirs.