
Illusion Baby
AchievementRepentanceUnlock unknown
Achievement details
- Achievement number
- 439
- Description
- Defeat Mega Satan with Jacob and Esau.
- Requirement
- Defeat Mega Satan as Jacob and Esau
How do you unlock Illusion Baby?
In The Binding of Isaac, Illusion Baby is unlocked by earning the Mega Satan completion mark as Jacob & Esau.
Structured pathSource-backed requirements are mapped into trackable steps.
Defeat Mega Satan with Jacob and Esau.
- ??? or The Lamb must be defeated once for the Golden Gate to spawn. source
- Open the Golden Gate by combining Key Piece 1 and Key Piece 2 into the Golden Key, or by using Dad's Key or another gate-opening effect. source
- Reach the starting room of Chest or Dark Room, pass through the Golden Gate, and defeat Mega Satan. source
What unlocking Illusion Baby leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13