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EarthBound Wiki

The Lost Underworld is an area in EarthBound that can be reached after Ness and co. leave Lumine Hall, and leads into the eighth and final Your Sanctuary location, Fire Spring. The overworld of this place is a big landscape, and the enemies are mostly dinosaurs.

Background Information[]

The area is first referenced in Fourside, when the player talks to Mr. Spoon in the dinosaur museum. After talking with Ness and the party for a while, he pulls them aside and informs them of rumors stating that dinosaurs still exist near southern Scaraba.

When Ness and co. finally get there, they find that the entrance is blocked by a giant rock. After leaving the Tenda village, Apple Kid calls Ness and co. with information concerning a new invention, the Eraser Eraser, as well as information about Ness's main enemy, Giygas. However, disaster strikes when Apple Kid is kidnapped by Giygas's minions. After freeing Apple Kid and others from the Stonehenge Base, Ness learns that Apple Kid returned the book 'Overcoming Shyness' to the Onett library. After obtaining the book and lending it to the leader of the Tendas, a very strong Tenda lifts up the rock that was blocking the way to Lumine Hall. Ness goes on to complete the dungeon and defeat the Electro Specter, allowing Ness to gain access to the Lost Underworld.

Following a brief cutscene, Ness and co. drop down a hole and find themselves in the Lost Underworld. When in the Lost Underworld, the player sprites are much smaller and movement speed is greatly decreased. The area is populated by Wetnosaurs, Chomposaurs and Ego Orbs. There's also a village of talkative Tendas separated from the shy group above, and another talking rock that tells Ness of the eight Your Sanctuary locations. In the village, you can rest at a hotel to restore your HP and PP. The place is also the location of the Cloak of kings, one of Poo's only equippable items. Every so often, the ground will shake, and a hot spring geyser will go off. There are two kinds of hot springs; the kinds with blue water which restore HP and PP, and the ones with red water which heal certain status effects.

On the north-west of the underworld, there is a cave entrance that leads you to the present version of the Cave of the Past. This only serves as a bit of foreshadowing, as the walkable area is very small, not allowing you to do or see much of anything. On the south-west of the underworld, there is a cave entrance that leads you to the last Your Sanctuary location: the Fire Spring.

The Underworld is one of the glitchier areas in the game, especially when teleporting from and to there. For example, if you attempt to teleport with sprites still loaded up on the field and fail, the sprites mess up and transform into different sprites that aren't supposed to be there, like Tendas or signs. If Ness touches the sprite, it'll initiate a green boss swirl, and crash the game. Another example is that if you teleport to the Lost Underworld into an enemy in a very specific frame, it will also crash the game.

List of enemies[]

Items Sold[]

Tenda Shop[]


  • The Japanese name for the Lost Underworld roughly translates to "The Continent in the Depths of the Earth"
  • There are unused tiny sprites of Ness doing a peace sign, as well as tiny sprites of the Camera Man. However, since there are no photo spots in the Lost Underworld, these are never used, and even if you activate a photo spot with the tiny sprites using a walk through walls code, Ness just uses the normal peace sign sprite.