Floor 4B

Floor 4B is an area in B3313.

Description
"A somewhat confusing labyrinth of hallways and corridors. Inoperable paintings dot the walls.

Every so often, the lights go out and reality itself breaks..."

Floor 4B is possibly one of the largest areas in the hack, sporting multiple connected rooms that all seem to loop back to each other with plenty of room to run around.

Origins
This area is inspired by an image used in one of wasteofblood's 1995 tracks of the name "2nd Floor." Most comparable is the image containing the Tox Box painting.

The music is a somber rendition of the "Inside Castle" theme from the vanilla game's OST. When the area is darkened, the music changes to that of Polygonal Chaos.

Two-Way

 * Boos' Upstairs: Enter the door at the end of the purple-lined aquarium.
 * Plexal Hallway: Enter the hole behind either of the moveable bookshelves.
 * Elder Koopa's Library: Move the bookshelf in the hallway leading to Bros' House.
 * Bros' House: Near the movable bookshelf in a tan-bricked hallway, enter the singular door at the end.
 * Basement Maze: At the end of a hallway with the basement wall texture.
 * Parallel Lobby: A lined door next to the painting room with the Grindel.
 * Vanilla Upstairs: A double door near the bottom of the area, in a small room.
 * Mirrored Upstairs: A double door near the top of the area, past the upper bridge.
 * Floor 4B (Corrupted): Walk through specific triggers around the hub (e.g. in front of the Tox Box painting).

Leading away

 * Mechanical Flattener: Walk into an ominous hole in the purple-lined aquarium.
 * Peach's Secret Slide (beta): Jump into a large stained-glass picture of Peach.
 * Big Blue Skylands: In the hallway leading to Bros' House, jump into the pothole to the right.

Paintings

 * Water Cube: Jump into a painting of Bob-ombs in Wet-Dry World.
 * Toxic Ruins: Jump into a painting of a Grindel in a poison sea.
 * Brick Block Fortress: Jump into a painting of a sea of clouds.
 * Fly Guy's Mountain: Enter the painting with Grass and Flowers.
 * Below the Clouds: Enter the Goomba painting near the stained-glass picture of Peach

Trivia

 * When the area is darkened, you will hear Peach's Ghost calling for Mario.