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Cave of the Past

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Cave of the Past
さいていこく The Great Under World

Cave of the Past
The Cave of the Past, as seen in EarthBound.
Cave of the Past
The Cave of the Past, before traveling through time to fight Giygas.

Connected areas
Lost Underworld
The Place

The Cliff That Time Forgot

The Cave of the Past[1] (also referred to as the Tunnel of the Past[2]) is the final location in EarthBound, and is where Ness and his friends fight Giygas.

The music for the Cave of the Past before traveling back in time is derived from the song All You Need Is Love by The Beatles, specifically the section based on La Marseillaise. The music after traveling back in time instead is an ominous variation on Deirdre by The Beach Boys.[3]


The Cave of the Past is technically first accessible from the Lost Underworld, although only a small segment of the cave is accessible at that point. After traveling to the distant past, the entirety of the cave can be explored. Different parts of the cave are connected via warping spheres. It begins on the lower right corner then goes west, then turns northeast. It then becomes straight north, then turns west making a u-turn east to the first warp sphere.

In this segment, a Magic Butterfly regularly spawns. This segment is short and makes a wide u-turn east, then west to the second warping sphere. The last section is a short path west then north leading to a cave which brings the player into Giygas's lair.

This area serves as a point of no return after traveling through the Phase Distorter in Saturn Valley.

As it is the final location, Exit Mice cannot be used here, although a glitch in Mother 1+2 subverts this.

Role in EarthBound

Ness and company can briefly glimpse the area from an entrance in the Lost Underworld, but cannot do anything at the time. They later arrive here via the second version of the Phase Distorter, after retrieving the Zexonyte for Dr. Andonuts.

Once the party arrives from Saturn Valley, they are greeted by the Star Master, who promptly teaches Poo how to use PSI Starstorm Ω before departing. They then discover the destroyed, first Phase Distorter and the Mr. Saturn who was kidnapped in it by Porky. It is at this point that Dr. Andonuts arrives with the final Phase Distorter to send the party back in time as robots to confront Giygas.

The Cave of the Past is then navigated by teleporting between strange spheres, until the party reaches the Devil's Machine where the final boss fight takes place. Giygas is revealed to be inside the Devil's Machine, once Porky turns it off, Giygas is released. As he cannot be defeated with brute strength, Paula offers a prayer, causing a chain of prayers from the people met on Earth. The combined prayers resulted in Giygas's defeat. The heros are then returned to the present day on Earth.


Item Location
Horn of life.jpg Horn of life Inside the broken Phase Distorter before traveling back in time
Legendary bat.jpg Legendary bat Before the first warp sphere


Sprite Enemy name Notes
EB Diamond Shaped Enemy sprite.png Bionic Kraken 1/128 chance of dropping a Gutsy bat
EB Diamond Shaped Enemy sprite.png Final Starman 4/128 chance of dropping a PSI caramel
EB Diamond Shaped Enemy sprite.png Ghost of Starman 1/128 chance of dropping a Goddess ribbon
EB Diamond Shaped Enemy sprite.png Nuclear Reactor Robot Explodes upon defeat; 16/128 chance of dropping a Super bomb
EB Diamond Shaped Enemy sprite.png Squatter Demon 2/128 chance of dropping a Horn of life
EB Diamond Shaped Enemy sprite.png Ultimate Octobot 16/128 chance of dropping a PSI caramel
EB Diamond Shaped Enemy sprite.png Wild 'n Wooly Shambler 8/128 chance of dropping a Multi bottle rocket
Heavily Armed Pokey Heavily Armed Pokey Boss
GiygasOverworld.png Giygas Final boss


Locations in EarthBound

Cities and towns
OnettTwosonThreedFourside (Moonside) • Happy Happy VillageSaturn Valley
Areas of interest
Ness's houseOnett Public LibraryBeak PointBurglin ParkPunk-SurePolestar PreschoolPeaceful Rest ValleyChaos TheaterGrapefruit FallsBelch's BaseDusty Dunes DesertGold MineMonkey CaveTopolla TheaterMonotoli Building


WintersSnow Wood Boarding HouseBrick Road MazeLake TessStonehengeSummersScaraba Cultural MuseumTotoStoic Club


DalaamMuScarabaPyramidDungeon ManDeep DarknessTenda Village

Special locations
Lost UnderworldMagicantSea of EdenCave of the Past

Giant StepLilliput StepsMilky WellRainy CircleMagnet HillPink CloudLumine HallFire Spring