The software will not work without it. Many developers specify that this file is "absolutely required" for the Mii renderer to function.
Because fflreshigh.dat is copyrighted Nintendo system software, emulator developers alongside public software distributions. As a result, vanilla emulator installations start out completely devoid of these core face assets. Why Games Crash miijs - npmx fflreshigh.dat
The "FFL" prefix in the filename stands for , which is Nintendo’s proprietary internal system framework utilized for generating and rendering Mii characters across the Wii U ecosystem. The software will not work without it