I AM ERROR



The I AM ERROR room is a rare room that isn't connected to any other room on the floor. I AM ERROR rooms contain several items and a trapdoor to the next level, which is the only exit from the room unless the character can teleport again.

Arriving at the I AM ERROR room

 * The only items that can bring you to the I AM ERROR room are, Telepills, , , and with
 * The item has a fixed list of destinations (I AM ERROR room being one of the few possibilities), being a quite reliable way to reach the I AM ERROR room.
 * Telepills have a very small chance of teleporting you to the I AM ERROR room.
 * The I AM ERROR room can be reached by using when all rooms on the floor have been explored, including secret rooms and the Devil / Angel room.
 * The I AM ERROR room can be reached by using with . This consumes both the  and the.
 * The I AM ERROR room cannot be reached anymore in, , and the final floor of the daily challenge.
 * It is possible to enter the I AM ERROR room in when not on a daily challenge, despite it being a final level, and restart the floor by entering the trap door.
 * The I AM ERROR room cannot be reached in.
 * The I AM ERROR room cannot be reached in II.
 * The I AM ERROR room cannot be reached in the floor of (the special version of / II).
 * The I AM ERROR room cannot be reached in.
 * During the Ascent, the I AM ERROR room will contain a beam of light instead.
 * The I AM ERROR room will NOT have a way to leave it if accessed in the final level of the alternate path.
 * The I AM ERROR room can be reached by leaving a Crawl Space through an unintended direction.
 * The I AM ERROR room can be reached by using to get out of the 13x13 boundaries of the map.
 * However, while in the floors Isaac cannot reach the I AM ERROR room, red doors also cannot be created on the boundary walls.

Room Contents
The following room maps were made using Basement Renovator for cleaner viewing.

I AM ERROR rooms always contain a trapdoor to the next level and a unique shopkeeper who can be blown up. Note that all items generated in I AM ERROR rooms will pull from random item pools and the trapdoor will always be open, even if there are enemies in the room.

Trivia

 * The I AM ERROR room is a reference to an infamous quote in the NES game Zelda II: The Adventure of Link, where a citizen from Ruto introduces himself with the sentence "I AM ERROR".
 * Due to the hard numbers required to access this room, and the name of the room itself, it could be a failsafe.