[FF] Dirty Bubble Challenge is a challenge in Fiend Folio, a mod for The Binding of Isaac.

There are no starting items defined for this challenge.

Note: this list does not include characters' default starting items.

Every enemy projectile is replaced with a Bubble of a random size.
Some flaming or explosive projectiles are replaced with Explosive Bubbles.
Homing projectiles are replaced with Fly Bubbles.

The following is unlocked for completing the [FF] Dirty Bubble Challenge challenge: Petrified Gel

• Check out the challenge description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.