I tested each gameboy emulator (Include advance version.) for pokemon yellow as Pikachu sound effect. There is emit static sound when u press button in title theme in pikachu's voice. Also emit static sound when Pikachu don't like inside pokeball and battle too. Why most gameboy emulator didn't have pikachu's voice? I do have real gameboy color and I play that game and it have Pikachu's voice in title theme, dislike pokeball, and in battle too. Anyone have any idea why mostly emulator don't work for pikachu's voice?