To use this file, you typically need either a hacked Nintendo Switch or an emulator like or Ryujinx . For Emulators (PC):

These files usually contain game enhancements, "Ultra" versions with higher difficulty, or all Pokémon available to catch.

Right-click Pokémon Brilliant Diamond in your emulator's game list. Select .

Most Ducumon releases include a Readme.txt or Changelog.pdf inside the .zip file. Check there first for specific "how-to-play" instructions or a list of changed Pokémon locations. 2. Installation Guide