1. The Binding of Isaac: Rebirth Achievements
2. Blue Baby achievement

The Binding of Isaac: Rebirth

Steam Deck Verified

10,978

637

4.64

16,948

1,273 (8%)

200+h

YoSaff

7,252

471

16 Oct 16

588h 36m

Add-on

Afterbirth

1,533

980

98

4.64

12,055

2,755 (23%)

200+h

Blue Baby achievement in The Binding of Isaac: Rebirth

Blue Baby

Unlocked a new co-player baby.

0

27 November 2016 - 1 guide

How to unlock the Blue Baby achievement

• sirperson121345,844

  Locked 14 Jul 2023
  0 0 0

  Defeat Mega Satan as ???

• Have you got any tips or tricks to unlock this achievement?
  Add a guide to share them with the community.

  Sign in and add a guide