Repentance transformations

Transformation sets

Find every transformation, the pickups that count, and the effect your completed set adds to the run. Special pill routes and Super Bum are included alongside the game-file item tags.

15Transformations
12Tagged sets
3Special recipes

Before you build a set

How transformation progress works

Items count on pickup

Active items can be picked up and swapped away. In Repentance, duplicate tagged items can add separate counts.

Some routes use pills

Adult comes from three Puberty uses. Stompy accepts size-up counts from two items and One Makes You Larger.

Repentance rules

This reference targets Repentance 1.7.9b. Repentance+ changes some memberships and adds Necromancer.

Transformations can be combined. If required items are rerolled or otherwise removed in Repentance, the linked transformation can also be lost.

What counts toward progress?

Check active swaps, duplicates, pill uses, held trinkets and reroll risks through fifteen illustrated examples.

Transformation progress guide →

Search every set

Transformation database

15 of 15 transformations

Filter by benefit
8 options

3 Guppy pieces

Guppy

Gain flight and turn successful tear hits into a steady source of Blue Flies.

FlightOffense
View requirements
24 options

3 fly-tagged items

Beelzebub

Gain flight, convert small enemy flies, and make larger fly enemies friendly.

FlightOffenseFamiliar
View requirements
10 options

3 mushroom-tagged items

Fun Guy

Complete the mushroom set to receive an extra Red Heart container.

Health
View requirements
17 options

3 angel-tagged items

Seraphim

Complete an angel set to gain flight and three Soul Hearts.

FlightHealthDefense
View requirements
4 options

3 Bob-tagged items

Bob

Leave poisonous green creep behind and become immune to poison.

OffenseDefense
View requirements
8 options

3 syringe-tagged items

Spun

Receive a direct damage and speed boost, plus a random pill.

OffenseUtility
View requirements
21 options

3 Mom-tagged items

Yes Mother?

Gain a trailing Mom's Knife that deals contact damage behind Isaac.

Offense
View requirements
31 options

3 baby-tagged familiars

Conjoined

Add two diagonal firing sources alongside Isaac's ordinary forward shots.

OffenseFamiliar
View requirements
11 options

3 devil-tagged items

Leviathan

Complete a devil set to gain flight and two Black Hearts.

FlightHealthDefense
View requirements
10 options

3 poop-tagged items

Oh Crap

Destroy poop piles to recover Red Heart health.

HealthUtility
View requirements
15 options

3 book items

Bookworm

Gain a fixed chance to fire a second full-damage tear.

Offense
View requirements
1 route

Use Puberty 3 times

Adult

Repeated Puberty pills award an extra Red Heart container.

Health
View requirements
16 options

3 spider-tagged items

Spider Baby

Gain a contact familiar that applies random status effects to enemies.

OffenseFamiliar
View requirements
3 options

3 size-up counts

Stompy

Grow larger, crush obstacles by walking over them, and create rock waves after some hits.

OffenseUtility
View requirements
3 options

All 3 bum familiars

Super Bum

Fuse the three bum familiars into one collector with doubled Repentance rewards.

UtilityFamiliar
View requirements

Item membership is generated from the Repentance item tags and player-form definitions in the extracted game files. Effects and exceptions are reviewed against the maintained Repentance reference. No API route, database, or runtime request is used.