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Sea Floor Dungeon

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Sea Floor Dungeon
かいていダンジョン Sea Floor Dungeon

Ocean M3.png
Lucas and his friends near the Sea Floor Dungeon's entrance.

Connected areas
Cerulean Beach
Tanetane Island
O2 in Love

The Sea Floor Dungeon is a location in Mother 3. It is the ocean that separates Tazmily Village from Tanetane Island. Traversing the ocean can be somewhat difficult due to the frequent use of an oxygen meter and Oxygen Supply Machines.

In Mother 3

In Chapter 7

The Sea Floor Dungeon is accessible at any point after the Masked Man pulls Aeolia's Needle. A Needle is known to be on Tanetane Island to the south of Cerulean Beach. However, no ships travel between Tazmily Village and Tanetane Island. With no other options, Lucas's party simply dives into the ocean. Along the way, two Navy SQUEALs use the O2 Machines the Pigmask Army uses for underwater traversal in front of Lucas. Using these machines, Lucas travels to the other side of the sea, where Master Eddy confronts his group. After defeating Master Eddy, in a desparation attack, Master Eddy releases a whirlpool that sweeps all the characters and their goods onto Tanetane Island's shoreline. With their HP and PP depleted from this attack and no goods to restore their health, Lucas is forced to eat the energizing mushrooms.

After defeating the Barrier Trio, Ocho will take Lucas's party back to Tazmily Village, traversing the dungeon without encountering any enemies.


Sprite Enemy name Notes
NavySQUEALOverworld.png Navy SQUEAL None
CarefreeJellyfishOverworld.png Carefree Jellyfish None
RoooundFishOverworld.png Rooound Fish None
RockLobsterOverworld.png Rock Lobster None
FishRoeManOverworld.png Fish Roe Man Optional enemy, guards the Awesome Crown
MasterEddyOverworld.png Master Eddy Boss


M3 Almost Mecha-Lion sprite.png
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Locations in Mother 3
Nowhere IslandsMt. OrianderTazmily VillageSunshine ForestDrago PlateauSunset CemeteryOsohe CastleDeath DesertRailwayFactoryMurasaki ForestClub TitibooHighwayClayman FactoryThunder TowerChimera LaboratoryMole Cricket HoleSnowcap MountainSaturn ValleyFire MountainSea Floor DungeonTanetane IslandArgilla PassNew Pork CityEmpire Porky Building

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