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Unknown Dungeon is a cave in Kalos. It can only be accessed once the Pokémon League has been defeated.

To reach Unknown Dungeon, one must travel through Route 20 to the Pokémon Village and bring a Pokémon who knows Surf. The entrance is located behind a ledge and can be accessed from the surfable river.

Description[]

Unknown Dungeon is a quiet, small cave. From the entrance in Pokémon Village, the cave starts with a short path that leads to a small chamber where Mewtwo awaits.

Pokémon[]

Mewtwo XY
Mewtwo
Level:
70
Type:
Type Psychic
Ability:
Pressure
Held item:
None


Items[]

Overworld[]

Items
Item Games Location/Method
  Mewtwonite X X Obtained after capturing Mewtwo
  Mewtwonite Y Y Obtained after capturing Mewtwo
  Oval Stone X/Y Northwest of the cave (hidden, reappars occasionally)

In battle[]

Items
Item Games Location/Method
  Float Stone X/Y Obtained by using Hyper Voice or Rock Slide when a brown rock is present in the background
  Hard Stone X/Y Obtained by using Hyper Voice or Rock Slide when a brown rock is present in the background
  Damp Rock X/Y Obtained by using Muddy Water, Surf or Water Spout when a gray rock is present in the background
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