- Description: Unlocked a new co-player baby.
- Unlock: Removed in Afterbirth+: Defeat Mom's Heart on hard mode as Lazarus
Added in Afterbirth+: Defeat Mom's Heart on hard mode as Azazel
- In-Game Secret Number: 173
|Description||Unlocked a new item.|
|Unlock||Complete challenge #19|
|In-Game Secret Number||62|
|Achievement Description|| |