Hanjuku Hero

Sound test
A sound test can be enabled using a little sequence on controller 2 at the title screen:


 * Press and hold A.
 * Press B and release it immediately.
 * Press and hold B.
 * Release A and press and hold it immediately again.
 * Release B and press and hold it immediately again.
 * Release A.
 * Press and hold Right.
 * Release all buttons.

Now you can use Left / Right on controller 2 to cycle through the sounds, and Up / Down to cycle through the music.