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Bob's Brain item
Bob's Brain is a familiar in The Binding of Isaac.
Description
Spawns a familiar that follows Isaac and launches forward while shooting.
If it hits an enemy, it deals 3.5 damage to the enemy and explodes. The explosion deals 100 damage and poisons enemies in its blast radius.
The explosion can hurt Isaac, dealing a full heart of damage.
Upon exploding, the familiar re-appears after a few seconds.
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.
Transformations
Item pools
Bob's Brain can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
| Baby Shop |
1.0/1.0
|
| Rotten Beggar |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| bob | Contributes towards the Bob transformation. |
| summonable | Can be summoned via  Lemegeton. |
| monstermanual | Can be summoned via  Monster Manual. |
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for Bob's Brain have been documented.
* Note that not all possible synergies and interactions are listed here.
Internal item description
Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.
Bob's Brain
• Familiar that charges in the direction Isaac is firing
• Explodes and applies poison on contact with an enemy
• Abyss: x1 explosive poison locust .5x Isaac's damage
External links
- Check out the item description on the external Isaac Wiki.
Leech 
Mystery Sack 
BBF 
Best Bud 
Lil Brimstone 
Isaac's Heart