David's Nintendo Code Book

GUILTY GEAR XX ACCENT CORE (wii)

checked-no
 =>EX/Gold/Shadow Characters: In Survival Mode, you'll face an EX Shadow
   version of a character once every twenty levels. Defeating the character
   will unlock it in the game.
     Eventually you'll start reaching golden versions of characters every 20
   levels. Again, defeat them to unlock them.
     To select these characters on the player select screen, just continually
   press the color select button ([ZR]) until Reload appears (press Dust for
   the shadow character) or Slash appears (press Dust for the gold character).