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Nightmare Fuel item
Nightmare Fuel is an unlockable active item in Lost and Forgotten, a mod for The Binding of Isaac.
Description
Activates the Nightmare mode for the room.
During Nightmare mode waves of Nightmare Gapers will come from off-screen and chase Isaac.
Nightmare Gapers deal Isaac's damage to nearby enemies after death.
After a Nightmare Gaper touches Isaac all of them disappear and Nightmare mode ends.
How to unlock?
Defeat Delirium as Tainted Joseph.
Item pools
Nightmare Fuel can be found in the following item pools:
| Name | Weight |
|---|---|
| Devil Room |
1.0/1.0
|
| Curse Room |
1.0/1.0
|
| Greed Curse Room |
1.0/1.0
|
| Greed Devil Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for Nightmare Fuel have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Book of Virtues | Wisps won't shoot or collide with enemies and projectiles if the nightmare state isn't active. |
* Note that not all possible synergies and interactions are listed here.
External links
- Download Lost and Forgotten from the Steam Workshop.
Robot's Battery 
Workshop 
Moon Rock 
Hot Rocks 
Two Hot Rocks 
One Hot Rock