Underground Ruins

11 Pokémon can be caught at Underground Ruins in Unova.

Deep within the Clay Tunnel lie the Underground Ruins, where Regirock, Regice, and Registeel — the legendary giants — can each be encountered, determined by whichever Key is active. At first, the chambers offer only clues to unsealing Regirock's room, the available hint changing with whether the sun or moon is out, but meeting the conditions turns the great door into a gateway leading to Regirock's chamber and any others unlocked by Keys. Opening the Rock Peak Chamber involves walking six steps down and nine right from the panel before the door, then pressing the A-button.

Pokémon at Underground Ruins

All areas

PokémonGamesMethodLevelsRarity
BoldoreBoldoreBlack 2White 2Walking54-56Spring
DurantDurantBlack 2White 2Walking54Spring
ExcadrillExcadrillBlack 2White 2Walking54-57Spring
LaironLaironBlack 2White 2Walking55-57Spring
NosepassNosepassBlack 2White 2Walking55-57Spring
OnixOnixBlack 2White 2Walking54-57Spring
SteelixSteelixBlack 2White 2Walking57Spring
WoobatWoobatBlack 2White 2Walking54Spring

Iceberg Chamber

PokémonGamesMethodLevelsRarity
RegiceRegiceBlack 2White 2Interact65Spring

Iron Chamber

PokémonGamesMethodLevelsRarity
RegisteelRegisteelBlack 2White 2Interact65Spring

Rock Peak Chamber

PokémonGamesMethodLevelsRarity
RegirockRegirockBlack 2White 2Interact65Spring