View Endings
Beat the game on any difficulty level,then go to the options screen. You will see a new option called "Demo Select." Choose it to view all of the endings you've earned, including the Secret Team endings!

Special Endings
To get the Special Ending You have to pick these Characters.

Kyo-Shingo-(and anybody else except Iori)
Kyo-Iori-Chizuru
Kyo-Mai-Billy
Kyo-Terry-Ryo
Mai-King-Yuri
Yamazaki-Choi-Chang
Terry-Mary-Joe
Kim-Benimaru-Joe
Ralf-Clark-Athena

Play as Orochi in Practice Mode
During practice mode, enter the five secret characters. After entering the codes, hold R, L, B, Y, Z for about three second, the cursor will highlight beside Iori and Shingo.

Play as Orochi New Team
Enter the Orochi Leona code, then return to the character section screen, hold START and press Up, Left, Down, Right, Up, Down, X + B.

Play as Orochi Leona
At the Character Select screen, highlight Leona then hold START and press Up, Down, Up, Down, Up, Down, Up, Down, Up, Down, Y + B