Play as Tetsuko:
Complete 10 hours of game play. Press Up to move outside the window on the character selection screen to choose Tetsuko (Asuka's teacher).
Play as Genichirou:
Complete 10 hours of game play. Press Down to move outside the window of the character selection screen to choose Genichirou (Asuka's school principal).
Alternate costume color:
Hold L, R, or L + R , then press A when selecting a character to choose between three new color schemes.
Press L or R at the configuration screen to access full gauge, auto block, life gauge, and other new options.