| Floors of
| The Basement|
|First Stage Health||60|
|Second Stage Health||45 Each|
|Items Dropped||Devil Room Pool|
The Fallen is an enemy in The Binding of Isaac: Rebirth that appears as a Boss on The Basement, The Cellar, The Caves, The Catacombs, The Depths, the Necropolis, The Womb, and the Utero Floors and as a Monster on later floors.
The Fallen has a number of actions that it will perform during the battle. They are as follows:
- The Fallen will at first fire a wave of 3 tears at Isaac and then a wave of 4 tears shortly after.
- The Fallen will chase Isaac until taking enough damage in which it will fire brimstone lasers in all four cardinal directions.
- Upon reaching half of its health, The Fallen will split into two smaller versions of itself.