What counts toward progress?
Check active swaps, duplicates, pill uses, held trinkets and reroll risks through fifteen illustrated examples.
Transformation progress guide →Completed set
What Spider Baby does
- Spawns a spider familiar that applies random status effects when it touches enemies.
How to transform
Acquire any 3 collectibles carrying the Repentance spider tag.
Qualifying pickups
Every item that counts
Box of Spidersactive · quality 1
Bursting Sackpassive · quality 1
Daddy Longlegsfamiliar · quality 3
Hive Mindpassive · quality 2
Infestation 2passive · quality 3
Juicy Sackfamiliar · quality 2
Keeper's Kinpassive · quality 2
Mutant Spiderpassive · quality 3
Parasitoidpassive · quality 3
Sissy Longlegsfamiliar · quality 1
Spider Bitepassive · quality 2
Spider Buttactive · quality 1
Spider Modfamiliar · quality 1
Spiderbabypassive · quality 0
Sticky Bombspassive · quality 2
The Intruderfamiliar · quality 3Rules that matter
Keep these exceptions in mind
- The transformation itself does not spawn Blue Spiders when Isaac takes damage. That effect belongs to the Spiderbaby collectible.
Reference
Game data and review
The transformation ID and tagged membership come from the extracted Repentance playerforms.xml and items_metadata.xml files. Item names, IDs, quality values, and icons come from the existing Bamboo Gaming item database. Special cases and effect wording were checked against the maintained Repentance reference. Repentance+ can differ.