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Dr. Fetus item
Dr. Fetus is an unlockable passive item in The Binding of Isaac.
Description
×0.4 fire rate multiplier.
Replaces Isaac's tears with bombs that explode after approximately 1 second after being fired.
Each bomb deals 10 times Isaac's damage. If this would lead to more than 60 damage, then the bombs instead deal 5 × DamageStat + 30.
Bombs' size depends on tear size modifiers.
Bombs deal no knockback to each other.
Note
This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.
How to unlock?
Defeat Mom's Heart 9 times.
Item pools
Dr. Fetus can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| summonable | Can be summoned via  Lemegeton. |
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for Dr. Fetus have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Abyss | Spawns a yellow locust that has a 50% chance to explode upon enemy contact, dealing 40 damage. |
* Note that not all possible synergies and interactions are listed here.
External links
- Check out the item description on the external Isaac Wiki.
Shoop da Whoop! 
Steven 
Pentagram 
Magneto 
Treasure Map 
Mom's Eye