Yume Nikki contains some unused spirites.
FC World
A huge part of the FC World is unreachable. There is also a smaller island with 4 statue's that cannot be reached in any way.
Graphics for three different FC world tree's exist, but only one of them is used. Here are the other two: File:FC 01 Tree's.png
There is also a tiny little cave graphic: File:FC 01 - kopie.png
Madotsuki's Room
Guillotine Room
Witch's Island
The pond on Witch's Island can contain some sort of sea creature.
Our scientist's are still researching how to make this creature appear. He keeps swimming from left to right. If you noclip in his pond and interact with him, then he will make noise. He responds normally to the Cat, Stoplight and Knife effect. (Of course you'd have to noclip to stab him)
The Lost Party Member
Another Party member can be added to your party, but this never happens in the game. It's nameless and there are no sprites associated with it. But having it in your party causes Several scripts in the game to change!
- All sane and insane Toriningen disappear! If you stand on their starting position and press the Action key, then you will be teleported to the inaccessible area that the Toriningen would have teleported you to. The Toriningen party and the nice lunatic in the Mall are not removed. If you enter the world again, then the cupboard will have returned to it's rightful spot.
- The top-left cupboard in the Guillotine Room will disappear. If you stand on it's former tile and press the action button, then you will end up in front of one of the 8 cupboards in the Eye world.
- If you wake up, you will be unable to move. You can still open your menu.
- The ending is not changed at all. Bummer.