
The Mirrored World is a special area of the Downpour II and
Dross 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 Room of the Mirrored World contains
Knife 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. Touching the fire will cause the player to "die" and take control of The 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 Cain is used in the mirror's room.
Sulfuric Acid or
Terra can break the mirror.
Mama 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 Rooms will contain a treasure as normal.
- All
Secret Rooms,
Shops, and
Vaults will be devoid of items. However,
Shopkeeper will still appear, and can drop items as normal.
- The
Member Card trapdoor will appear in the shop, and will lead to an empty store.
D7 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 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.
- The
- 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 Markets – which will have no items.
- Black Markets can be populated with a
Shop Restock Machine. Items purchased from a mirrored Black Market are considered to be purchased by the non-mirrored character rather than The Lost; multiple items can be purchased and the health will be deducted from the non-mirrored character, possibly resulting in death.
- However, if items are bought via
A Pound of Flesh in a mirrored shop while in
The Lost form, all those items are free. No health is deducted from the non-mirrored character. This is also true of items restocked from a
Member Card area if that area was only visited in the Mirrored World, such that it was initially empty and then restocked (e.g. if Member Card were purchased in the Mirrored shop then immediately accessed). Caution is advised; while the items are free in this unique scenario, the spikes around pickups will still kill
The Lost form. Subsequently going back to the non-mirrored member card area will also leave items/pickups restocked from the mirrored world on top of the original non-mirrored spawns. This is probably a bug as the area is meant to be the same.
- However, if items are bought via
- The use of
Genesis will teleport the player to a room without trapdoor, where he will only can pickup items. Note as well that there isn't any bed, nor mirror inside.
- Black Markets can be populated with a
-
Wraiths 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
Joker card in the mirrored world is not recommended, as it will teleport Isaac to an empty version of the
Devil Room or the
Angel Room, causing the card to be wasted.
- Using a
-
The Lost and
Tainted Lost can pass through the mirror normally.
-
Tainted Jacob can enter the mirror if he has been touched by
Dark Esau.
-
Tainted Soul can also enter the mirror without a white fire, and in turn, keep his health bar.
- The mirror can even be entered by throwing
Tainted Forgotten at the mirror.
- Even though Tainted Soul can enter the mirror,
The Soul cannot.
- The mirror can even be entered by throwing
-
- It is a viable strategy to visit
Downpour II /
Dross II and enter the mirrored world even when not wishing to reach
Mother, as it guarantees an extra Boss Room item and various pickups from clearing rooms. This is a risky strategy, however, as
The Lost can still die easily.
- If a
Planetarium or a
Library exists in the normal world, it will exist on 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
The 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 Machines, Devil Beggars, and Hell Games, will result in an immediate death, even if the non-mirrored character has health to spend.
- Using
D4 will transform Isaac back to his normal form with normal health, potentially making surviving the mirrored world much easier. This does not prevent leaving the Mirrored World normally via the mirror.
- When using any revival items while in the Mirrored World, such as
Dead Cat or
Judas' 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
Dad's Key or
Get out of Jail Free Card.
- A
Dice 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 ![]() ![]() |
---|
![]() ![]() | ||||||||
---|---|---|---|---|---|---|---|---|
Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Optional | Chapter 5 | Chapter 6 | Endgame | |
![]() |
![]() Basement |
![]() Caves |
![]() Depths |
![]() Womb |
![]() ![]() ??? |
![]() Sheol
|
![]() Dark Room
|
![]() ![]() The Void
|
![]() ![]() |
![]() Basement |
![]() Caves |
![]() Depths |
![]() Womb |
![]() Sheol |
![]() The Shop |
![]() Ultra Greed |