Binding of Isaac: Rebirth Wiki

(in Repentance)

The Mirrored World is a special area of the DownpourDownpour II and DrossDross II. The layout of The Mirrored World is the exact same as the normal floor, except mirrored left to right. Each room contains the same enemy encounters and has the same block layout, although some rocks may be different. The Treasure RoomTreasure Room of the Mirrored World contains Collectible Knife Piece 1 iconKnife Piece 1. The boss is also identical, and, if defeated, will drop an item from the Boss item pool.

Accessing the Mirrored World[ | ]

In Downpour II or Dross II, there will be a room with a mirror on the side of a wall. In another part of the map, there will be an inextinguishable White Fire PlaceWhite Fire Place. Touching the fire will cause the player to "die" and take control of Character The Lost iconThe Lost. This state allows Isaac to pass through the mirror and access the Mirrored World.

Notes[ | ]

  • The Mirrored World is covered in a shimmery overlay, and its graphics slowly warp. Additionally, items and pickups will have their artwork inverted, and the level's soundtrack is played backward.
  • Breaking the mirror is possible with a bomb, but it's not recommended as it will cut off access to the Mirrored World.
    • Breaking the mirror while inside the Mirrored World will cut off access back to the normal world. Isaac will begin to fade and eventually start taking damage. Extra lives cannot be used to prevent this, as Isaac will continue dying after using an extra life.
    • The mirror will also break if Soul of CainSoul of Cain is used in the mirror's room.
    • Collectible Sulfuric Acid iconSulfuric Acid or Collectible Terra iconTerra can break the mirror.
    • Collectible Mama Mega! iconMama Mega! will break the mirror upon entering the room.
  • On XL floors, only one of the Treasure Rooms will contain Knife Piece 1 - the other will be empty. Both Boss RoomBoss Rooms will contain a treasure as normal.
  • All Secret RoomSecret Rooms, ShopShops, and VaultVaults will be devoid of items. However, ShopkeeperShopkeeper will still appear, and can drop items as normal.
    • The Collectible Member Card iconMember Card trapdoor will appear in the shop, and will lead to a store.
    • Collectible D7 iconD7 will spawn rerolled versions of whatever was initially in the room in the normal world; that includes any pickups, chests, and pedestal items.
    • Using the Shop Restock MachineShop Restock Machine in the shop in the Mirrored world will make items appear in the mirrored shop. The normal shop will not be rerolled, and subsequent rerolls will not match those of the mirrored shop.
  • If the location of a secret room or super secret room was first discovered in the mirror world, its location will be mapped when returning to the normal world, and vice versa.
  • Trapdoors will not be spawned, except to crawlspaces or Black MarketBlack Markets – which will have no items but can be populated with a Shop Restock MachineShop Restock Machine to spawn some.
  • WraithWraiths will appear visible, but they will lack reflections unlike other entities, opposite of their normal appearance.
  • The rooms in the Mirrored World count as separate rooms, so anything that happens in the normal world room will not affect the mirror world variant of the room, and they drop their own pickups upon completion.
    • Using a JokerJoker card in the mirrored world is not recommended, as it will teleport Isaac to an empty version of the Devil RoomDevil Room or the Angel RoomAngel Room, causing the card to be wasted.
  • Character The Lost iconThe Lost and Character Tainted Lost iconTainted Lost can pass through the mirror normally.
    • Character Tainted Jacob iconTainted Jacob can enter the mirror if he has been touched by Dark EsauDark Esau.
    • Character Tainted Soul iconTainted Soul can also enter the mirror without a white fire, and in turn, keep his health bar.
      • Even though Tainted Soul can enter the mirror, Character The Soul (Character) iconThe Soul cannot.
  • It is a viable strategy to visit DownpourDownpour II / DrossDross II and enter the mirrored world even when not wishing to reach Boss Mother secondphase ingameMother, as it guarantees an extra Boss Room item and various pickups from clearing rooms. This is a risky strategy, however, as Character The Lost iconThe Lost can still die easily.
  • If a PlanetariumPlanetarium or a LibraryLibrary exists in the normal world, it will exist in the mirrored world and require a key to open, even if it's opened in the normal world. However, there will be no items.
  • To turn back into the original character, it's required to clear 1 room as Character The Lost iconThe Lost. If Isaac is in the Mirrored world, he will turn back after going through the mirror if he has not gone through it already. If there are no rooms left on the current floor, he could clear a room on the next floor and turn back.
  • Any means of spending blood, including Blood Donation MachineBlood Donation Machines, Devil BeggarDevil Beggars, and Hell GameHell Game, will result in an immediate death, even if the non-mirrored character has health to spend.
  • When using any revival items while in the Mirrored World, such as Collectible Dead Cat iconDead Cat or Collectible Judas' Shadow iconJudas' Shadow, Isaac's health will still be affected by the revival item used, even though the character in the Mirrored World is the Lost. For example, dying with Dead Cat will set the character's health to 1 red heart, regardless of the player's health in the non-Mirrored World.
  • The mirror cannot be entered if the player uses Collectible Dad's Key iconDad's Key or Get out of Jail Free CardGet out of Jail Free Card.
  • A Dice RoomDice Room in the mirror world is distinct from the other Dice Room, is activated separately, and may have a different number.
  • In co-op mode, or when playing as Character Jacob and Esau iconJacob and Esau, it is possible to have all but one character in their normal forms (normal health, etc.) while in the mirror world – that one only must touch the flame then use the mirror. Character Tainted Lazarus iconTainted Lazarus only needs one of his forms to become The Lost, while the other (flipped) form can stay normal in the mirror world.
  • Items and trinkets that effects tear projectile direction, such as Ouroboros WormOuroboros Worm, will be mirrored horizontally from Issac.

Bugs[ | ]

Bug Bug! Spawning items with a Restock Machine in a Collectible Member Card iconMember Card mirrored shop will result in them overlapping with the items in the non mirrored Member Card shop.