Special Endings  -  Here is how you can get to see the two special endings the game features.

Special Ending 1 Beat the game with Kyo, Iori and Reiji as a team
Special Ending 2 Beat the game with Moe, Miu and Jun as a team

Endless Mode Get the highest score in Time Attack

MAXIMUM Difficulty Obtain Master Orochi Rank with Kyo, Reiji and Moe

Play as Sinobu Get Master Orochi Rank for all 21 characters
Play as Sinobu (powered) Get Master Orochi Rank with regular Sinobu
Power Gauge Option in Menu Get the high score in Endless Mode

Shortcut to Player Select Menu Obtain Master Orochi Rank with Ryo, Yuri and Takuma
Story Mode ON/OFF Switch Obtain Master Orochi Rank with Iori, Jun and Miu

Time Attack Mode Obtain Master Orochi Rank with 18 characters