: Launch your ROM and press Alt + Enter or Esc to enter fullscreen mode.
: Some graphics plugins may not handle this shift correctly. In that case, try moving the windowed emulator to the second monitor first and then pressing Alt + Enter . Option 2: Set the Second Monitor as "Primary"
The fastest way to move Project64 to your second monitor is by using standard Windows shortcuts while the game is running.
While Project64 does not currently have a dedicated native feature for selecting a second monitor for fullscreen, you can achieve this through several built-in Windows shortcuts and community-driven workarounds. Option 1: Move the Game Window (Keyboard Shortcuts)
Launch Project64; it should now open on that screen by default. Option 3: Plugin-Specific Settings