Binding of Isaac: Rebirth Wiki

Shopkeeper I AM ERROR

The I AM ERRORI AM ERROR room is a rare room that isn't connected to any other room on the floor and is reached through glitches or as a failsafe for an impossible event (like using Collectible Blank Card iconBlank Card on (except in Rebirth)? Card? Card, which loops on itself infinitely without a failsafe).

I AM ERROR rooms are chaotic and often contain multiple items, pickups, beggars and/or powerful enemies. There are no doors to leave, but always an exit to the next level (in Repentance)(with few exceptions) and at least one unique shopkeeper (pictured above) with a text bubble that reads "I AM ERROR".

The trapdoor will always be open, even if there are enemies in the room.

Accessing the I AM ERROR room[ | ]

  • The only items/effects that can bring Isaac to the I AM ERROR room are Telepills, Collectible Undefined iconUndefined, (except in Rebirth)Collectible Teleport 2.0 iconTeleport 2.0, (in Repentance)Collectible Red Key iconRed Key and Collectible Blank Card iconBlank Card + (except in Rebirth)? Card? Card. (This consumes Collectible Blank Card iconBlank Card and (except in Rebirth)? Card? Card)
  • Collectible Undefined iconUndefined is the simplest method, as it has a decent chance to teleport the player there.
  • (in Repentance)Using Collectible Red Key iconRed Key on the 13x13 boundaries of the map will create a 1-way door to the I AM ERROR room, and displays no icon on the map upon opening.
    • No red door outlines will appear on the normal floor's boundary walls, meaning the I AM ERROR room can only be entered from another Red RoomRed Room. At least 2 uses of Cracked KeyCracked Key are needed to enter if you don't have access to Collectible Red Key iconRed Key.
  • Telepills have a very, very small chance of teleporting Isaac to the I AM ERROR room.
  • (except in Rebirth) Using Collectible Teleport 2.0 iconTeleport 2.0 when all rooms on the floor have been explored (including the Secret RoomSecret Room(s), Super Secret RoomSuper Secret Room(s), and the Devil RoomDevil Room or Angel RoomAngel Room) sends you to the I AM ERROR room.
  • (in Repentance)The I AM ERROR room can be reached by leaving a Crawl SpaceCrawl Space through an unintended direction. This will always bring you to an error room, even when all other methods stop working.
    • Collectible Blank Card iconBlank Card + XXI - The World?XXI - The World?, Collectible Clear Rune iconClear Rune + Rune of EhwazRune of Ehwaz,Collectible We Need To Go Deeper! iconWe Need To Go Deeper! and Collectible Mom's Shovel iconMom's Shovel offer consistent methods of creating crawl spaces.
    • Use 4 size downs, 2 speed, and crash into the floor below the entrance ladder or 3 size downs and the left and right walls using flight.
      • One makes you smaller is the easiest way to acquire multiple size downs, and while you can exit the crawl space using listed minimums, it requires a lot of patience sometimes. Collectible Pluto iconPluto/Collectible Inner Child iconInner Child are equal to 4 uses of the pill.
      • It is also possible to exit through an unintended direction using Collectible A Pony iconA Pony / Collectible White Pony iconWhite Pony and 1 size down, albeit rarely. Significantly more common with 2 or more size downs. The speed stat does not matter since the charge-speed is a flat velocity.
      • You can use Collectible Spin to Win iconSpin to Win, 2 speed & flight just by themselves to exit, bouncing off the far left and right walls and timing turning around after each bounce to build up speed and eventually exit.
  • (in Repentance)The only way to access the I AM ERROR room on ChestChest, Dark RoomDark Room, The VoidThe Void, HomeHome, CorpseCorpse II or the Collectible Dad's Note iconDad's Note floor is through a Crawl SpaceCrawl Space.
    • ChestChest and Dark RoomDark Room's I AM ERROR room contain a portal to The VoidThe Void.
      • If the I AM ERROR room is encountered during a daily challenge or a regular challenge it will instead contain a trapdoor that will reset the floor. If you have been given a mega-satan key for the challenge you will be supplied with another one on the next floor.
    • CorpseCorpse II's I AM ERROR room has a crawl space inside as a way out.
      • In the rare event of accessing I AM ERROR on CorpseCorpse XL and encountering a trapdoor in that error room, Isaac is taken to a new floor which attempts to load then the game crashes.
        • This can be viewed by enabling the LABY RNTH seed and getting into the Corpse XL Error room. The loading screen will display HomeHome's floor icon and the game will crash after.
    • The Collectible Dad's Note iconDad's Note floor is the same as a regular MausoleumMausoleum/GehennaGehenna II I AM ERROR room, leading to WombWomb II.
    • HomeHome and The VoidThe Void's simply contain a trapdoor that restarts the floor.
  • (in Afterbirth †) The I AM ERROR room cannot be reached anymore in ChestChest, Dark RoomDark Room or the final floor of the daily challenge.
  • (in Rebirth and Afterbirth)Entering the exit of an I AM ERROR room in the ChestChest or Dark RoomDark Room will restart the floor.
  • (in Repentance) During the Ascent, the I AM ERROR room will contain a beam of light instead.

Room Contents[ | ]

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

ID Weight Contents Image preview
0 1.0 Two items. Error 1
1 1.0 An item and nine random pills. Error 2
2 1.0 An item and 16 random coins. Error 3
3 1.0 An item, four random cards/runes, and ten urns. Error 4
4 1.0 An item and four ChestChests. Error 5
5 1.0 An item, two pickups/items for sale, and seven random coins. Error 6
6 1.0 An item, four pickups/items for sale, and two Golden PoopGolden Poops. Error 7
7 1.0 An item and an Eternal HeartEternal Heart, Red HeartRed Heart, Soul HeartSoul Heart, and Black HeartBlack Heart. Error 8
8 1.0 An item, two random keys, and 6 Locked ChestLocked Chests. Error 9
9 1.0 An eternal, red, soul, and black heart, a Key RingKey Ring, a Double BombDouble Bomb, a regular, locked, and Red ChestRed Chest, a Lil' BatteryLil' Battery, two random pills, and a random card. Error 10
10 1.0 An item and four trinkets. Error 11
11 1.0 Four soul hearts. Error 12
12 1.0 An item, eight shopkeepers, and 12 FlyFly. Error 13
13 1.0 Four shopkeepers, six keys, and two Key MasterKey Masters. Error 14
14 1.0 48 PoopPoops and 2 golden poops. Error 15
15 (except in Rebirth) 1.0 An item, four extra error shopkeepers, and two Boss Rag Man ingameRag Men. Error 16
16 (except in Rebirth) 1.0 11 Reward PlateReward Plates. Error 17
17 (except in Rebirth) 1.0 A Corny PoopCorny Poop, 14 Attack FlyAttack Flies, and 18 random pickups/items. Error 18
18 (except in Rebirth) 1.0 Two items, eight shopkeepers, and Super GreedSuper Greed. Error 19
19 (except in Rebirth) 1.0 Two items and a Shop Restock MachineShop Restock Machine. Error 20
20 (except in Rebirth) 0.1 Eight soul hearts and 12 Blue GaperBlue Gapers. Error 21
21 (in Afterbirth † and Repentance) 1.0 12 Fire PlaceFire Places and 7 Spiked ChestSpiked Chests. It is possible to enter the room on a spiked chest and immediately take damage. Error 22
22 (in Afterbirth † and Repentance) 1.0 An item, six keys, two Eternal ChestEternal Chests, eight Blue Fire PlaceBlue Fire Places, and two Angel Statues. The angels will not drop key pieces if defeated. Error 23
23 (in Afterbirth † and Repentance) 1.0 An item, two Lucky PennyLucky Pennies, two black hearts, a Gold HeartGold Heart, two Black RuneBlack Runes, four spikes, six Red Fire PlaceRed Fire Places, and two Devil statues. Error 24
24 (in Afterbirth † and Repentance) 1.0 Five Grab BagGrab Bags, two Lil' BatteryLil' Batteries, and four random pickups/items. Error 25
25 (in Afterbirth † and Repentance) 1.0 A Donation MachineDonation Machine, poop, two BeggarBeggars, two Blood Donation MachineBlood Donation Machines, and two Beds. Error 26
26 (in Afterbirth † and Repentance) 0.1 Two items, two golden poops, four Rainbow PoopRainbow Poops, and 23 random pickups/items. Error 27
27 (in Afterbirth † and Repentance) 0.1 Two pickups/items for sale, nine poops, and six flies. Error 28
28 (in Repentance) 0.1 An item, two BulbBulbs, and four Black PoopBlack Poops. Error28
29 (in Repentance) 0.1 Six Gold HeartGold Hearts (four of which are behind Spiked Rocks), four extra shopkeepers, and a Golden Troll BombGolden Troll Bomb. Error29
30 (in Repentance) 0.5 Four keys and two Mega ChestMega Chests. Error30
31 (in Repentance) 1.0 A Nickel, eight random coins, six poops, a Beggar, and a Rotten BeggarRotten Beggar. Error31
32 (in Repentance) 0.5 Two keys and four Old ChestOld Chests. Error32

Notes[ | ]

  • Once Isaac arrives at the I AM ERROR room, the only ways out are the trapdoor to the next level or another teleport. As the I AM ERROR room is randomly reached, this could force Isaac to skip Treasure RoomTreasure Room and/or Boss RoomBoss Room items if they hadn't been picked up before, and if he cannot teleport again.
  • Items in the I AM ERROR room will be from random item pools.
  • (in Repentance) Once Corrupted Data is achieved (beating Boss Delirium ingameDelirium as Character Tainted Eden iconTainted Eden), items that spawn in this room have a chance to be randomized as if affected by Collectible TMTRAINER iconTMTRAINER.
  • (in Afterbirth † and Repentance) Using Collectible Undefined iconUndefined on ?????? always sends the player to the error room as there are no secret rooms on this floor.
  • If a Crawl SpaceCrawl Space is spawned in the I AM ERROR room, Isaac will return to the room he was in before being teleported to the I AM ERROR room upon exiting the Crawl Space.
  • Using the trapdoor in the I AM ERROR room can allow Isaac to reach levels not yet unlocked, like SheolSheol or CathedralCathedral.
  • (in Rebirth) Using the trapdoor in ChestChest or the Dark RoomDark Room will restart the level, similar to the effect of the Collectible Forget Me Now iconForget Me Now, and as of patch 1.05, the floor will generate a different layout upon restarting. The door to Mega Satan Head ingameMega Satan will be locked if it was previously opened.
  • The chests present in the I AM ERROR room while on ChestChest and Dark RoomDark Room always contain items.
  • Using the Rune of JeraRune of Jera in most of these room configurations can allow Isaac to duplicate a very large amount of pickups, making Jera especially effective in this room.
  • If a Red Chest teleports Isaac to a Devil RoomDevil Room or Angel RoomAngel Room from an I AM ERROR room, exiting the room will return him to the room he was in before entering the I AM ERROR room.
  • Entering the I AM ERROR room from WombWomb/UteroUtero/(except in Rebirth)Scarred WombScarred Womb II will randomly result in a trapdoor or a beam of light. Isaac may have to end his run early in the CathedralCathedral/SheolSheol.
  • It is probably not a good idea to go to the I AM ERROR room on DepthsDepths/NecropolisNecropolis/(except in Rebirth)Dank DepthsDank Depths II before getting Collectible The Polaroid iconThe Polaroid/Collectible The Negative iconThe Negative, because then you can't go to the ChestChest or Dark RoomDark Room, having to end the run in SheolSheol or CathedralCathedral.
    • Reaching another I AM ERROR room in the above-mentioned levels would allow continuing the run beyond them, even lacking the prerequisite items.
    • Note that the 12th reward and onward in a Sacrifice RoomSacrifice Room has a 50% chance to send Isaac to Dark RoomDark Room. This may be useful if an I AM ERROR room locked Isaac out of Collectible The Negative iconThe Negative.
    • (in Repentance) This rule also applies to Isaac when trying to reach an alternate floor from a main floor (DownpourDownpour II from BasementBasement II, etc.). The I AM ERROR room will always send him to a regular floor (BasementBasement II to CavesCaves I, etc.) and Isaac will not be able to pick up the necessary progression items needed to reach CorpseCorpse.
    • (in Repentance) This also applies to reaching HomeHome. The I AM ERROR rooms of DepthsDepths II, etc., will instead send Isaac to WombWomb I, etc., and he will not be able to enter the Strange Door.
  • (except in Rebirth) There is a rare Closet room in DepthsDepths and NecropolisNecropolis containing an I AM ERROR shopkeeper. This is not an I AM ERROR room, and can be exited normally.
  • (except in Rebirth) There is a Super Secret RoomSuper Secret Room that looks like an I AM ERROR room. This is not an I AM ERROR room, and can be exited normally.

Trivia[ | ]

Bugs[ | ]

Bug Bug! If isaac enters an I AM ERROR room in the first room of the first floor (possible with Character Eden iconEden), and have not entered any rooms yet, using (except in Rebirth)Collectible Glowing Hourglass iconGlowing Hourglass will send him back to an identical starting room, with all of his starting items missing, including the Glowing Hourglass. This also effects items gained from (except in Rebirth)Collectible Eden's Blessing iconEden's Blessing.