floor 371 is accessed by forgetting how to access floor 371

Floor 372 is a strange place, with wierd gravity and alien creatures. It can only be accessed by going to a specific elevator that changes daily and is known by one man in the lobby at all times, and trying to go below the first floor. It becomes more dangerous the longer you stay here, so get in, do whatever you want to do, and get out.

Floor 373 is a dirty old janitor's closet with a table, and on the table is a plate of bacon, biscuits, chicken and waffles, and fried tomatoes. You can only leave by willingly not eating anything in the room.

Room 374 is filled with false riches and promises or so they say. There's a rumor that underneath all the false gold and falses truths lies the real treasure. But it's not but a rumor. A rumor that came from a delusional old orc who lived in a lost city. Nobody knows what the true treasure could be but the most popular theories propose that the treasure might be a mirror that can grant you any wish or perhaps a cursed bracelet that turns you into golden dust or maybe you'll find yourself in another world. Nobody truly knows and those who search for the answer never returns. Be grateful you cannot wonder into this room unwillingly,  the only way into the room is through a elevator painted "gold" that only appears when the "receptionist" at the front desk on floor 1 offers a room that will satisfy all your pleasures. 

room 375 is an empty room with a box on it. inside the box is the same room. on the outside of the box is a tiny door. if you open it up, you can see a smaller room, with a smaller you, looking into a smaller door on a smaller box. on one of the walls, there is a door. it is up to you to figure out what happens when you go through. this room is accessed by mentioning recursions. you cannot leave.

The only way to get to floor 376 is to not talk to that gnome asking you to prove him wrong that Breland would have lost the Last War. Floor 376 is a version of Eberron where Karrnath won the Last War, and they probably would have because of their undead forces.

Oh, I just remembered that you were supposed to leave a comment on the last floor, so I guess the gnome's hat is blue.

You get to floor 377 with any elevator. Floor 377 is just a hallway full of doors to hotel rooms. When you get there you receive a card telling you which room is yours. I suggest you stop and rest there for a bit.

The only way to get out of 377 is to find a closet that could  be in any room that leads to 378 

Speaking of 378! Floor 378 is just the far realm. Eldritch horror galore. Get ready to go insane 

Also there is a gnome with a blue hat.

Floor 379 is your favorite place. It automatically shifts to be that way. You get there either by imagining yourself in your favorite place, or t-posing in your room in floor 377. Also there might be a random stairway in floor 379 that leads to the next floor.

Floor 380 contains all floors, including itself, excluding all floors that contain all floors, excluding itself.

It can be accessed by putting all floors that contain all floors into an elevator, excluding itself.

Only the opera singer can help you access floor 380. 

Floor 381 is actually a portal to a realm where everything and everyone is in an anime style, this ranges from 80’s animes to chainsaw man, even a few American styles that are considered anime. 

Floor 382 has a giant potted plant. Nobody knows what kind of plant it is. Every time you are in the verge of figuring it out, your memory is wiped and you are back in the lobby.

Floor 383 can only be accessed by figuring out what kind of plant the plant on floor 382 is.

Floor 383 has a teeny tiny potted plant. Everybody knows what kind of plant it is because that knowledge is drilled into your head.

IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER IT'S A SUNFLOWER.

Only it’s not a sunflower, it’s a buttercup and you have to pass the buttercup’s test to move onto floor 316 

floor 316 is essentially a closet. Anything ordinary about the closet? Well of course not! Once you walk in far enough, the closet looses walls as you are plunged into darkness, and you become Kris Dreemurr! You are now in Deltarune 

Floor 384 is an entire copy of all the worlds and settings across all of D&D, for safekeeping. these are entered and exited by portals that appear when you are ready to leave. the way to access this floor is by going up the stairs. (Remember that tavern level, at the start?) it also includes this tower, which contains this level, which contains this tower, etc. 

Floor 385 is the inside of the Wii Sports Resort volcano. That's it.