The VG Resource

Hello i got one little problem here

It not a problem with recording, but hidden sound test option
Theres is cheat code to unlock hidden sound test, so ive imput that cheat code many times and nothing happend
Its not fake, Sound Test exist just look on this screen shot here
https://tcrf.net/Super_Star_Wars_(SNES)

Whatever emulator you're using, just remap the face buttons (that'd be the A,B,X,Y) to one keyboard key (something that isn't used elsewhere), keyboards weren't meant to have 4 or more keys pressed at the same time.