Released on , this update introduced the Frozen Tour event and several other major additions. Core Features of Update 1.5.5
: Players can encounter "Star Rivals"—legendary characters like Captain Falcon, Samurai Goroh, Dr. Stewart, and Pico —on frozen tracks. Beating them as a designated rival unlocks special Pilot Card badges.
: These are compressed archives used to package multiple files. If you find a "155rar" file, it likely contains the NSP update data and requires software like WinRAR or 7-Zip to extract. Subsequent Updates How to Update F-ZERO 99 | Nintendo Switch | Support
: A special event where players compete in 9 consecutive races . Rankings are determined by a score system involving total lap points, KOs, and Gem Sparks collected during the races.
: The maximum player level was raised from 399 to 699 , with new star colors to distinguish high-level veterans. Safety and Installation
: An NSP (Nintendo Submission Package) is the standard format for Switch digital content. While these are used in the homebrew community, downloading them from unofficial sources carries risks of malware or console bans.
: All standard tracks were covered in snow, appearing as "frozen tracks".