Battle Fantasy
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Earworm item
Earworm is a passive item in Battle Fantasy, a mod for The Binding of Isaac.
Description
Randomly plays a sound effect after a random amount of time, ranging from 15 to 60 seconds. The sound effect that plays will attempt to trick Isaac, and can change depending on what character is being played and what items they have.
Whenever a sound effect plays, grants Isaac +0.6 speed that fades over 10 seconds.
Additional copies of Earworm decrease the maximum amount of time between sounds playing, equal to 60 / NumberOfEarworms seconds, and can't go below 15 seconds.
Item pools
Earworm can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
| Greed Shop |
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 Earworm have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Abyss | Spawns a tan locust. |
* Note that not all possible synergies and interactions are listed here.
External links
- Download Battle Fantasy from the Steam Workshop.
Suspicious Heart 
Book of Phantoms 
Chance Card 
Wrapped Candy 
Demonic Brace 
Fast Die