Title: Naomi Osaka's 2021 Season: A Year of Triumph and Turmoil
The naomi.zip file contains the operating system and region-specific code needed for an emulator to "handshake" with a game ROM. Without a valid and up-to-date BIOS file from a recent MAME romset (such as the 0.236 set released in late 2021), users often encounter "BIOS file not found" errors in popular frontends.
2021 saw continued improvements in NAOMI emulation through the Flycast core in RetroArch, resulting in better compatibility and performance.