Hold LEFT + SELECT + START + A + B when the phrase "Tecmo Presents 1989" appears and continue holding them until the title screen appears in full. A sound will confirm correct code entry. Press START to display the sound test screen. Press UP or DOWN to select a sound, A to play a sound, and B to stop a sound. Note: in the European version of the game, hold DOWN/LEFT + SELECT + START + A + B when the phrase "Tecmo Presents 1989" appears .