This is just a very quick guide how to add a emulator to the gmenu2x below the guide is to add snes9x4d.For other emulators of games add your own names that matches the emulator or game.
1. Transfer snes9x4d.dge to roms (icon file eg SNES.png can be added too) 2. Press SELECT button whilst in Emulators section of Gmenu2x and choose "add link in emulators", navigate to snes9x4d.dge and press A 3. Press SELECT button on the link just created and pick "edit snes9x4d". Modify/check the following fields (when editing selectordir, use START to go back): title=snes9x4d description=Snes9x4d emulator ported from GCW0 icon=path to SNES.png selectordir=/mnt/ selectorbrowser=ON wrapper=ON 4. Press START to exit back to desktop