Bamboo Gaming · Updated

Mom in-game boss portrait

Repentance · Major boss · Boss #6

Mom

The fixed Chapter 3 finale. Defeating Mom opens the route choice that drives the rest of a run.

ChapterChapter 3
Base HP645
SelectionSet encounter
Locations3

Encounter map

Where to find Mom

Set encounter
Depths IINecropolis IIDank Depths II

This fight is reached on the Depths II route. It is a set encounter, so it does not appear in the random floor boss pools.

Fight guide · Depths II / Necropolis II / Dank Depths II

How to fight Mom

Your first main-path finale combines a shadow-marked foot stomp with attacks and enemies from the four wall doors.

Main-path Mom in Repentance. Champion versions differ; Mausoleum and Gehenna Mom has stronger stomps and eye lasers.

Before entering

Keep space from the door openings and leave yourself a clear route out of a stomp shadow.

  1. 1

    Stomp shadow

    Watch for: A growing shadow and a grunt warn of a stomp at Isaac's position; the opening stomp lands in the center.

    Try: Move outside the shadow before the foot lands, then attack it from a safe distance.

  2. 2

    Wall openings

    Watch for: Hands reach from nearby doors, while exposed eyes and flesh also cause contact damage.

    Try: Shoot exposed parts without standing against a doorway. Move away before approaching another opening.

  3. 3

    Summoned enemies

    Watch for: Monsters from the doors can occupy your escape route while another stomp is being prepared.

    Try: Clear the threats closest to you and keep watching the floor for the next shadow.

Reviewed encounter notes. Actual openings vary with your build. Full behavior reference ↗
All boss fight guides
Game-file referenceRaw data and official artEntity fields, portrait files, and source notes for this boss.

Raw entity values

Health and entity data

Base HP
645
Stage HP scaling value
0
Entity ID and variant
45.0
Contact damage field
2

These are raw entity fields. Armor, floor scaling, phase transitions, shared health, and scripted waves can make the fight differ from the base HP value.

Asset mapping

Official portrait assets

The Mom versus-screen portrait comes from the supplied game art. The original filenames are retained below.

Mom official game portrait
Mom official boss-name graphic
Portrait file
Portrait_45.0_Mom.png
Boss-name image file
BossName_45.0_Mom.png

Source notes

How this record is built

Boss identity and portrait metadata come from bossportraits.xml. Random floor membership, weights, and Double Trouble room IDs come from bosspools.xml. Health and entity fields come from entities2.xml. Fixed story locations and route explanations are reviewed editorial context.