Is there a “SpeedUp” option in the game?


Yes and no. You can adjust the battle speed in the Options Menu, but not the overall game speed.

Can the game be played on Delta (iPhone), 3DS, or an emulator?


No, that’s not possible. The game runs on Windows, Mac, SteamDeck, and Android (via Joiplay).

Are starter and legendary Pokémon shiny-locked?


No, they are not.

Where can I catch Pokémon XYZ?


You can find all encounter locations in the Encounter Overview.

Where can I find Item XYZ?


You can find all item locations in the Item Overview.

How does Pokémon XYZ evolve?


Evolution methods are the same as in Generation 8.
However, a few have been slightly adjusted — these can be found here.