Play as Hinamazu:
Complete all sections in all four levels. 

Alternate costumes:
Finish in first place in all course and course variations two times to unlock every
costume. 

Alternate introduction sequence:
The introduction sequence will change after a new record is set. 

Hidden artwork:
Place the game disc in a PC compatible CD-ROM drive to find two desktop
background images named "wallpaper1" and "wallpaper2".