If you have acquired the NSP file and want to verify it yourself (to ensure you are getting the 3.0.5 update and not an older version), the community has developed specific tools to do so.
We're excited to announce that a verified NSP file for Mario Kart 8 Deluxe (version 305) has been made available. This NSP file has been thoroughly checked and verified to ensure its integrity and functionality.
: This is a standard Nintendo Submission Package file used for digital game storage and installation.
Using verified sources helps ensure the file is not corrupted or malicious. Installing the 3.0.5 Update (NSP/NSZ)
Right-click Mario Kart 8 Deluxe in your game list, select , and ensure version 3.0.5 is checked. For Custom Firmware Consoles (Atmosphère)
Fixing out-of-bounds glitches or item exploits used unfairly in competitive play.
) used on modded Nintendo Switch consoles or emulators like Yuzu. The "305" denotes the game's latest official update, Version 3.0.5 Mario Kart 8 Deluxe
Once you have confirmed your v3.0.5 update NSP is verified and safe, it can be applied to your preferred platform. For Emulators (Ryujinx) Open your emulator interface. Navigate to > Install Application Update . Select your verified v3.0.5 NSP file.
If you have Tinfoil on your Switch, add a trusted shop (not named here for legal reasons). When you search for "Mario Kart 8 Deluxe," a verified 305 install will show:
For users of emulators like Ryujinx or Yuzu, this update requires Prod.keys and Title.keys version 20.0.1 or newer to run correctly. Installation and Technical Details