This game is titled Nervous Brickdown in North America, Europe, and Australia and Brickdown in Japan.
Earn a medal on all of the levels in a world to unlock a sound test option for that particular world. This can be done for all ten worlds. The requirements to earn a medal for all normal stages appear before game play begins in each world. To earn a Boss medal you must defeat it without losing a life. After earning a medal, the music can be heard by going into the "Bonus" menu.