Do not press any buttons until the opening screen with the phrase "press any button to play" appears after the introduction sequence and the high scores. At this screen, hold Left and press Button 2 four times, hold Right and press Button 2 three times, then hold Left and press Button 2 once. Move completely to either side of the screen before pressing Button 2. This code may also be entered on the continue screen with the "yes" and "no" choices to play again. Note: Scores obtained while this code is enabled will not appear on the high score screen.