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The Unknown Dungeon

1st Floor
2nd Floor
Basement

The Unknown Dungeon must be surfed to from the Nugget Bridge in Cerulean City. It is home to the most powerful and rare Pokémon in the world! But first, you will notice that this time the Unknown Dungeon Is Completely different from Red And Blue so expect to get lost so look at the above correct maps of it in Yellow. There aren't any trainers inside, but there are items and Pokémon to be had including the rarest of them all. When you fight Mewtwo, Make sure you either use your Master Ball on it or have it frozen/paralyzed and at LowHP

Pokémon Seen On the 1st Floor
Golbat Graveler Gloom Weepinbell Sandslash
Common Common Uncommon Uncommon Uncommon
Venomoth Parasect Ditto
Rare Rare Rare

Pokémon Seen On the 2nd Floor
Golbat Graveler Sandslash Rhyhorn Ditto
Common Uncommon Uncommon Uncommon Uncommon
Gloom Weepinell Rhydon
Rare Rare Rare

Pokémon Seen On the Basement
Golbat Graveler Rhyhorn Rhydon Ditto
Common Uncommon Uncommon Uncommon Uncommon
Chansey Lickitung Mewtwo
Rare Rare Only 1

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