Why do you want fullscreen in the first place? Beyond aesthetics, fullscreen provides significant technical benefits for rhythm games:
Create a file called Launch_Fullscreen.bat and paste this code: psych engine fullscreen
This article will serve as your definitive guide. We will cover everything from basic hotkeys to advanced configuration file editing, troubleshooting black screens, and understanding why fullscreen behaves differently in Psych Engine compared to vanilla FNF. Why do you want fullscreen in the first place
function toggleFullscreen() { #if desktop if (FlxG.fullscreen) { FlxG.fullscreen = false; FlxG.resizeWindow(1280, 720); // Your default window size } else { FlxG.fullscreen = true; } #end } troubleshooting black screens