Probably not. These emulators generally require you to "inject" the rom image into the emulator file, then recalculate the N64 checksum. The NeoMyth menu handles that for you on NES and GameGear games. Anything else requires you to do it yourself and then load it like a normal game. It looks like the ED64 is similar for NES games, but you'd have to wait until KRIKzz adds support for UltraSMS if you want automatic handling of GG games. Each emulator is a bit different. UltraSMS requires the GG rom be copied into the emulator at a particular spot, so without knowing the spot, you'd not put the rom in the right place to work. As always, KRIKzz is free to incorporate anything from the NeoMyth menus he finds handy. It's why the Myth menus have such a permissive license.