If you prefer a single file, you can use a tool like Switch Army Knife (SAK) on your PC to merge the base game and update into one consolidated NSP before installing it on your console. Nintendo Switch NSP Combination Install Tutorial
Tweaks some of the 80+ costume abilities for better flow. Quick Setup Guide: balan wonderworld switch rom nsp update full
Connect your Switch SD card to a PC or use a USB cable with a tool like NS USB Loader . If you prefer a single file, you can
Check the version number at the top left of the screen to confirm the update was successful. Alternative: Combining Files Check the version number at the top left
On your Switch, enter the Homebrew Menu (usually by holding while launching any installed game). Open your preferred installer (e.g., Goldleaf or DBI ). Install the Update