At the title screen, select the Configurate System. Set Sound Test on 5 and then you'll be able to switch "Area" by using LEFT or RIGHT on the D-Pad.
EXTRA END SCENES
By using this option you'll be able to see some cut scenes from the Japanese ending that didn't make it into the US version.
First you must enable the "Non-Death Mode" which is done by holding down the A and B buttons during, and until the end of, the opening animation. Then you should see a screen that says "Death & Non-Death Free Select
Mode OK!". Then you'll be able to select "Non-Death mode" in the Configurate System.
However don't turn on any of the cheats. Now beat the game and during the ending scenes, before the credits, press and hold the A and B buttons, then you should some extra scenes from the Japanese version.