A Wii ISO file is essentially a copy of a Wii game, stored in a single file. Downloading and using Wii ISO files can be a complex issue, as it may infringe on copyright laws and potentially expose users to malware or viruses.
Players could link their Nintendo DS to the Wii to use their custom-trained teams from Sinnoh.
: The "proper" way to play was to link your Nintendo DS via local wireless to transfer your trained Pokémon from Diamond, Pearl, or Platinum for cinematic 3D battles. The ISO Story: A Gray Area of Preservation
Go to the official Dolphin Emulator website and download the latest "Beta" or "Development" version. Avoid the "Stable" version, as it is often years out of date and lacks critical performance updates. Step 2: Acquire the Game File
If you want legal alternatives, I can: