Ogre Battle 64: Person Of Lordly Caliber Codes - 
Music test:
 Start a new game and enter MUSIC_ON as a case-sensitive
name.
Delete saved game files:
 Start a new game and enter DEL_DATA as a case-sensitive
name. 
In-game reset:
 Press 
 +
 + 
 +
 + 
 +
 + 
 during game play to return to the title screen.
during game play to return to the title screen.
Save game files on a memory card:
 Hold 
 while turning on the Nintendo 64.
A menu should appear before the little soldiers drill out the
logo. At this menu, you can copy one of your game files that are
on your cartridge to a memory card. When you are done, move over
to the exit and press
 while turning on the Nintendo 64.
A menu should appear before the little soldiers drill out the
logo. At this menu, you can copy one of your game files that are
on your cartridge to a memory card. When you are done, move over
to the exit and press 
 .
. 
Guard:
 Press 
 before you get attacked at the right
moment, and the game will guard you.
 before you get attacked at the right
moment, and the game will guard you.