Use the game’s official eShop/online store page to purchase and download the DLC
Make sure your emulator supports the game and DLC format you are using
Dump your legally owned game, updates, and DLC from your console
Install the base game in the emulator first
Install the latest game update before adding DLC
Place the dumped DLC files in the emulator’s expected DLC/content directory
Refresh or rescan the emulator’s game library
Verify the emulator detects the DLC in the game properties or add-ons list
Launch the game and check the in-game content selection
If DLC is missing, confirm the region matches the base game
If DLC is missing, confirm the update version matches the DLC version
If DLC is missing, re-dump the DLC from your own console and reinstall it
Avoid using unofficial or pirated DLC files