You can no longer purchase digital copies of Pokémon Sun directly from the official store.
The official digital file size for on the Nintendo 3DS is approximately 3.2 GB (26,215 blocks). While some online sources may list slightly smaller file sizes around 3.0 GB or 3.1 GB for various region-specific versions or modified files, the standard download version typically requires a 4 GB SD card to accommodate the full game and save data. Important: Availability of Digital Downloads Download Pokemon Sun (EU) | 3DS File | 3.1G
As of , the Nintendo 3DS eShop has officially closed . You can no longer purchase digital copies of
Downloading unauthorized "3DS files" or ROMs from unofficial third-party sites is illegal and carries risks. Historically, Nintendo has issued permanent hardware bans to users caught using pirated copies of Pokémon Sun online, which blocks the console from all Nintendo network services, including the eShop and online play. Legitimate Ways to Play Pokémon Sun Important: Availability of Digital Downloads As of ,