
The Emperor
AchievementRepentanceUnlock unknown
Achievement details
- Achievement number
- 528
- Description
- ???
- Requirement
- Defeat Ultra Greedier as Tainted ???
How do you unlock The Emperor?
In The Binding of Isaac, The Emperor is unlocked by earning the Ultra Greedier completion mark as Tainted ??? on hard mode.
Structured pathSource-backed requirements are mapped into trackable steps.
???
How to unlock: Use Red Key (etc.) to open the hidden closet in Home as ???
What unlocking The Emperor leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13