Fight as Saishu Kusanagi and Omega Rugal:
Hold Start and press Up + B, Right + C, Left + A, Down + D at the team edit screen with the fifteen second counter. Saishu Kusanagi and Omega Rugal will appear on either side of the counter, which will reset to fifteen seconds.

Blood mode, realistic Mai:
Press A + D on controller one and B + C on controller two simultaneously at the high score screen. Press Start to begin game play.

Select winning pose:
Pressing A, B, or C after the last attack, before the pose sequence begins. If your character is the losing fighter, press A, B, or C on controller two at this time.