XXXXXXXXL
AchievementAfterbirthUnlock unknown
Achievement details
- Achievement number
- 265
- Description
- Unlocked Challenge #21.
- Requirement
- Defeat Mom
How do you unlock XXXXXXXXL?
In The Binding of Isaac, XXXXXXXXL is unlocked by unlocking Mom.
Structured pathSource-backed requirements are mapped into trackable steps.
Unlocked Challenge #21.
Defeat Mom
What unlocking XXXXXXXXL leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13