Open MHGU on your Switch, go to "Data Transfer" in the main menu, select "Link Nintendo 3DS and Nintendo Switch," and enter the password from your 3DS.
If you've lost your original save or want to bypass the early-game grind, community members often share "100% completion" save files. These files typically include: .
Guide: Monster Hunter Generations Ultimate Save Files & Transfers
On the 3DS app, select "Save Data Transfer" to upload your data. Once complete, select "Receive Save Data" on the Switch main menu.
Someone know how to transfer 3ds MHG data to switch in 2025?