King Of Fighters 2002 Codes -

Fight as King:
Successfully complete mission 40 in time attack mode. Alternately, play time attack mode 150 times.

Fight as Kusanagi:
Successfully complete mission 20 in time attack mode. Then, hold when choosing Kyo at the character selection screen. Alternately, play team attack mode 50 times.

Fight as Rugal:
Defeat Rugal in team attack mode to unlock him as a selectable character. Alternately, play team attack mode 20 times.

Fight as Shingo:
Successfully complete single attack mode. Alternately, play single attack 20 times.

Orochi Team:
Hold and choose Yashiro, Shermie, and Chris at the character selection screen.

Team Attack mode:
Successfully complete the game in team mode to unlock the team attack mode option.

Single Attack mode:
Successfully complete the game in single mode to unlock the single attack mode option.

Gallery pictures:
Defeat a character in single attack mode to unlock his or her picture in the gallery.