Due to the limitations of a Super Famicom system all the sound was stored on two CDs and a device called "Voicer-Kun" was invented and sold packaged together with a game. Its purpose was to connect SFC to an audio CD player via an IR connection in order to automatically play sound at appropriate times.

No emulator can currently deal with "Voicer-Kun" and emulated game will invariably have no sound.