If you need anything specific like NSP file or ROM I can't help you with that due to copyright.
You can finally see the intricate designs of your favorite Yo-kai like Jibanyan and Whisper without the pixelated edges of the handheld original. yokai watch 1 for nintendo switch nsp jpn u better
The U Region version is objectively better. It offers full language localisation, Japanese voice option, and all bug fixes. Search for “Yo-kai Watch 1 Nintendo Switch NSP U better” if you want a complete, accessible experience. If you need anything specific like NSP file