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Basement Key
A key that opens a door in the Goldenrod Tunnel.
Game descriptions
- Ruby, Sapphire, Emerald:The key for NEW MAUVILLE beneath MAUVILLE CITY.
- FireRed, LeafGreen:The key to NEW MAUVILLE, which was constructed beneath MAUVILLE CITY.
- HeartGold, SoulSilver:A key that opens a door in the Goldenrod Tunnel.
- Black, White, Black 2, White 2:A key that opens a door in the Goldenrod Tunnel.
- X, Y, O.Ruby, A.Sapphire:A key that opens a door in the Goldenrod Tunnel.
- Sun, Moon, Ultra Sun, Ultra Moon:The key to New Mauville, which was constructed beneath Mauville City.
- B.Diamond, S.Pearl:A key that opens a door in the Goldenrod Tunnel.
- Scarlet, Violet:A key that opens a door in the Goldenrod Tunnel.