Encounter map
Where to find It Lives!
Set encounterThis fight is reached on the Womb II route. It is a set encounter, so it does not appear in the random floor boss pools.
Compare the next routesFight guide · Womb II / Utero II
How to fight It Lives!
The permanent successor to Mom's Heart uses the same core patterns with different enemies in its summon waves.
Before entering
Treat it as the full Heart encounter. After this clear, choose the exit that matches your Cathedral or Sheol route.
- 1
Shared attack pattern
Watch for: It Lives! follows Mom's Heart's retreat, projectile, and late laser behavior.
Try: Keep a lane open during the projectile cycle and prepare to move around the rotating beams near the end.
- 2
Changed summons
Watch for: Its waves can include larger enemies such as Polycephalus, Fistula, Teratoma, and Chub.
Try: Deal with the summoned threat before trying to resume uninterrupted damage on the Heart.
- 3
Choose the next floor
Watch for: The Cathedral and Sheol exits lead toward different ending bosses.
Try: Take the path that matches the completion mark or ending you are pursuing.
Completion mark
It Lives! character rewards
Defeating It Lives! records the Mom's Heart / It Lives! mark for the character you are playing. The direct rewards for this mark require a Hard clear. The reviewed list has 15 direct reward entries tied to this completion target. These are achievement unlocks, not items dropped by the boss.
Multi-mark and roster-wide achievements appear in the completion tracker.
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
- 950
- Stage HP scaling value
- 0
- Entity ID and variant
- 78.1
- Contact damage field
- 0
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 It Lives! versus-screen portrait comes from the supplied game art. The original filenames are retained below.


- Portrait file
- Portrait_78.1_ItLives.png
- Boss-name image file
- BossName_78.1_ItLives.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.
The portrait record is gated by achievement ID 34 in the game data.