Night O N E (or night1.blend) is a blender file night in the fangame BLENDER.avi.
On this night,only oswald.blend will be active.
Since it takes place when Blender's alpha was just coming out the only things available are your laptop brightness settings and checking on the blender file frequently.
If you see a blender character not in it's blender file, turn up your laptop brightness. They are allergic to the light so they will retreat to the gray space of Blender.