The game features two regions called Gaia and Hyrule, where there are mysteries such as the legend of Hyrule Island, which no one from the Gaia region has managed to visit, and other mysteries like the three Pokémon guardians in the Hyrule Plains: Jirachi in the mountains, Zekron on the slopes, and Celebi in the forest.

For those who have played The Legend of Zelda, you might have noticed the connection with the name of the Hyrule region, designed to resemble the Hyrule Plains in Zelda but with the Pokémon backstory.