Audio Room - Successfully complete Will's story to unlock the Audio Room at the Story Select menu.

Play as Claris Sinclair - Get all 60 Dream Drops, and jump into the fountain in the Dream World with Helen to unlock Claris Sinclair from NiGHTS Into Dreams.

Play as Elliot Edwards - Get all 60 Dream Drops, and jump into the fountain in the Dream World with Will to unlock Elliot Edwards from NiGHTS Into Dreams.

Sketchbook - Successfully complete Helen's story to unlock the Sketchbook at the Story Select menu.

Video Room - Successfully complete Helen's story with a "C" rank or better on all missions to unlock Helen's Video Room at the Story Select menu. Successfully complete Will's story with a "C" rank or better on all missions to unlock Will's Video Room at the Story Select menu.

Music - Successfully complete the indicated task to unlock the corresponding music at the "Sound Library" menu:

Alternate Dream Gate - Get an "A" rank on all missions to make it snowy at Dream Gate and play new background music there.

Christmas theme - Set the system date to December 24th, and go to My Dream. You will hear the Jingle Bells song from Christmas NiGHTS playing in the background.

Finding Dreamdrops - Get a television in My Dream mode. Look at it to see close-up views of where Dreamdrops are hidden in the Chase missions.

Halloween theme - Set the system date to October 31st, and go to My Dream. The Nightopians in the My Dream garden will have black witch hats.

NiGHTS Into Dreams soundtrack - Get an "A" rank on all missions to unlock the NiGHTS Into Dreams soundtrack.

Race Music: Play a two player race in Two Player mode.