The "DLC/aktualizacja" (Polish for "DLC/update") part of the title indicates the package includes: : Pokémon Shield version 1.0.0.
The search result title you are referring to typically points to listings on ROM-sharing or homebrew websites for on the Nintendo Switch. PokГ©mon Shield SWITCH NSP/XCI [DLC/aktualizacja...
Downloading NSP or XCI files for games you do not own is considered software piracy. Most official Pokémon content and updates are managed directly through the Nintendo eShop . The "DLC/aktualizacja" (Polish for "DLC/update") part of the
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