Press Options when choosing a character at the selection screen. Murakumo's portrait will now show her without her mask, and she will appear that way during game play. The other girls' portraits will look the same, however they will not be wearing certain things during game play.

Accessoire	How to unlock
Imu	No glasses.
Jasmine	No sunglasses.
Murakumo	No mask.
Ryoki	No halo, yellow one only.
Shiki	No hat in Transformation or Frantic mode.