The safest and easiest way to update F-Zero 99 is through the Nintendo Switch Home Menu. Highlight the game icon, press the [+] Button , and select Software Update > Via the Internet .
file, and confirm the installation to either the SD card or System NAND. PC Transfer : Alternatively, you can use NS-USBloader F-ZERO 99 -NSP--Update 1.5.5-.rar
This update primarily introduced winter-themed content and increased player progression limits: The safest and easiest way to update F-Zero