The FC Worlds are deeper locations within the dream world.
Features
The FC Worlds are Famicom-styled worlds, featuring lower-resolution graphics and a unique menu theme. There is an inaccessible map as of Version 0.10.
FC World A
FC World A is an island that consists of various volcanos and bridges. It is populated by various Lizardmen that contain the only proper dialogue in the game, that being a random five-number string.
FC World B
FC World B is an island that can be accessed by talking to a certain Pirori, randomly selected each dream, in the Barracks Settlement. Upon arriving at the Pirori room, walking south leads to the FC World B overworld. Walking southwest leads to the FC Ruins, and heading northwest of the FC Ruins entrance presents you with the FC Pyramids.
The Buyo Buyo effect is obtainable in this area.
FC Dungeon
The FC Dungeon is a dark labyrinth accessible from FC World A. It can be brightened with the Lamp effect. It leads to White Desert B.
One room hosts the Famicom Glitch event. Every time Madotsuki goes to sleep, there is a 1/3 chance that the room's upper-left corner can be interacted with to make an empty text box appear. Continuing to interact with the wall will simply prompt the same empty text box, slowly distorting the graphics. After enough interactions, the room becomes fully corrupted and plays a high frequency noise, causing Madotsuki to wake up.
FC House
The FC House is accessed from the Static Maze. It houses many rooms, one of them containing the Demon effect.
FC World C
FC World C is an unused and empty location as of version 0.10. An unused event called NASU link can be found in version 0.09, which connects to this area if enabled.
Directions
FC World A
The Nexus → Graffiti World → The Mall → Dense Woods → Teleport Maze → The Wilderness → Static Tunnel → FC World A
FC World B
The Nexus → Dark World → The Wilderness → Barracks Settlement → FC World B
FC Dungeon
The Nexus → Graffiti World → The Mall → Dense Woods → Teleport Maze → The Wilderness → Static Tunnel → FC World A → FC Dungeon
FC House
The Nexus → Shield-Folk World → Static Maze → FC House