Of all of the big changes found in Brilliant Diamond & Shining Pearl, those connected to the Underground are perhaps the most notable. Now called the Grand Underground, this sizeable subterranean area is home to a plethora of Pokemon, including many that can't be found anywhere else in the Sinnoh region. Though not quite as drastic a change, observant players may also have noticed a mysterious counter prominently placed beneath the player's mini-map.
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