Monster Hunter Generations Ultimate Save — Data Transfer App Cia ((link))
Data moves from 3DS to Switch; it cannot be sent back to the 3DS.
The app functions as a "data mailbox." It allows you to upload your save file from the 3DS version ( MH Generations ) to Nintendo’s servers. Once uploaded, you can download that data onto your Nintendo Switch version ( MHGU ). Data moves from 3DS to Switch; it cannot
As of 2025, Nintendo’s transfer servers remain active, but no one knows for how long. The is a preservation tool. It ensures that even a decade from now, new players who discover Monster Hunter Generations on a dusty 3DS can bring their legacy forward. Data moves from 3DS to Switch
will be reset. If you are HR 9 or above, it typically resets to HR 8. Not Transferred Nintendo’s transfer servers remain active