Dude i own a Super Ufo Pro 8 use snestoolv1.2 or insnest or ctools to split them down ucon doesn't do that very well and the ufo does play mgh and game doctor format and fig and swc snes roms files, when you load a game from the floppy it ask you what format ufo, game doctor or fig, swc
P.s you won't be able to run kirby 3 cos of the sa-1 chip that the game has.