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The Regi Trio can only be unlocked when you have the special event Regigigas from Toys'R'Us. If you have this Regigigas, Registeel will be in a hidden room on Iron Island, Regirock will be in Rock Peak Ruins in Route 228, and Regice will be in Iceberg Ruins nearly at the peak of Mt. Coronet. They can also be obtained by inserting Pokemon Sapphire, Ruby, or Emerald (If you have the Regi Trio on any of this games) in the GBA slot and migrate them to the Pal Park.

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8y ago

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