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.
Yashiro, Shermie, Chris-Orochi team
On the character selection screen hold Start and press up, left, down, right, up, down then B,C.
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.