You can often find used physical cartridges on marketplaces like eBay, Mercari, or at local retro gaming stores. Wii Version:
If you are using an emulator, you will likely need the ROM in or .CIA format. Donkey Kong Country Returns 3D ROM Download - 3...
The 3DS version includes a whole new world (Cloud) with eight original levels not found in the Wii version. You can often find used physical cartridges on