Super Game Boy
In Japan, Hori released a special Super Game Boy controller called the SGB Commander. The controller, aside from the 4 Game Boy buttons (A, B, Start and Select), also has 4 Super Game Boy specific buttons which can enable the user to mute the sound, reduce the speed of the game, change the colors and modify the display window. An additional switch is provided to alternate between Super Game Boy mode and regular Super Famicom Mode.