Langrisser

Level select:
Press A during game play to zoom out the map.
Move the cursor to the upper left corner of the screen, then move it one space right and one space down.
Hold B until a number that represents the scenario is displayed.
Press Up or Down to select a level.
Game play will begin with the commanders present when the code was entered.

Sound test:
During game play, move the cursor to the upper left corner of the screen, then move it one space right and one space down.
Hold B until a number that represents a sound displayed.
Press Up or Down to change sounds.