The King of Fighters '95

Play As Saishu Kusanagi and Omega Rugal - Pick team edit. At the fighters selection screen, hold down to the Start button and press Up + B, Right + C, Left + A, Down + D.

Code Effect - Play As Saishu Kusanagi and Omega Rugal Pick team edit. At the fighters selection screen, hold down to the Start button and press Up + B, Right + C, Left + A, Down + D.

The King of Fighters '97

Codes

Different players - Enable either the Orochi Iori or Orochi Leona codes. Highlight Leona, then hold Start and press Up, Left, Down, Right, Up, Down, B + C at the character selection.

Code Effect

Play As Orochi Iori At the character section screen, highlight Iori. Hold down the Start button and press Left, Right, Left, Right, Left, Right, A + C.
Play As Orochi Leona At the character section screen, highlight Leona. Hold down the Start button and press Up, Down, Up, Down, Up, Down, B + D.
Play as Orochi team Enable either the Orochi Iori or Orochi Leona codes. Highlight Leona, then hold Start and press Up, Left, Down, Right, Up, Down, B + C at the character selection. <BR>
Yashiro, Shermie, Chris-Orochi team On the character selection screen hold Start and press up, left, down, right, up, down then B,C. <BR>They should appear on the bottom. The 'Play as Orochi Iori' or 'Play as Leona' code should be done first for this one to work
Play as Orochi Iori Place the cursor on Iori and hold START. Then input the following code: left, right, left, right, left, right + AC. Orochi Iori will appear underneath Iori.
Play as Orochi Leona Place the cursor on Leona and hold START. Then input the following code: down, up, down, up, down, up + BD. Orochi Iori will appear below Shingo.

Pick any of these three-person teams to unlock the secret ending:

Kyo-Iori-Chizuruu
Kyo-Mai-Billy
Kyo-Terry-Ryo
Mai-King-Yuri
Yamazaki-Choi-Chang
Terry-Mary-Joe
Kim-Benimaru-Joe
Ralf-Clark-Athena

Play As KoF '94 Style Kyo - At the character selection screen, highlight Kyo, hold down the Start button, and press any button.