From Bulbapedia, the community-driven Pokémon encyclopedia.
The Underground Ruins (Japanese: 地底遺跡 Underground Ruins) is an area located within the Clay Tunnel.
The legendary golems, Regirock, Regice, and Registeel, can all be found here. Which of the golems encountered depends on various conditions. Regirock can be found in the Rock Peak Chamber once a puzzle is solved. Registeel requires the Iron Key to unlock the Iron Chamber, while Regice requires the Iceberg Key to unlock the Iceberg Chamber. The Iron Key can only be found in Black 2 and the Iceberg Key can only be found in White 2; the key that cannot be found in one version can be sent through Unova Link from another game.
If all three legendary golems caught here are present in the player's party, Regigigas can be awakened in Twist Mountain.
Pokémon
Pokémon
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Games
|
Location
|
Levels
|
Rate
|
|
B2
|
W2
|
|
57
|
%
|
|
B2
|
W2
|
|
55, 57
|
%
|
|
B2
|
W2
|
|
55, 57
|
%
|
|
B2
|
W2
|
|
54-55
|
%
|
|
B2
|
W2
|
|
54
|
%
|
|
B2
|
W2
|
|
54
|
%
|
Dust clouds
|
|
B2
|
W2
|
|
54
|
%
|
|
B2
|
W2
|
|
54-57
|
%
|
Special Pokémon
|
|
B2
|
W2
|
|
Only one
|
|
65
|
One
|
|
B2
|
W2
|
|
Only one
|
|
65
|
One
|
|
B2
|
W2
|
|
Only one
|
|
65
|
One
|
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
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Trivia
In other languages