Big Baby
| Id | 37 |
| Information | Big Baby is a Co-op Baby in The Binding of Isaac. |
| Description | Briefly increases Isaac's size on random intervals. |
| Unlock | Defeat Mega Satan as  Lilith. |
| History | This baby was added in Afterbirth. |
| Id | 37 |
| Information | Big Baby is a Co-op Baby in The Binding of Isaac. |
| Description | Briefly increases Isaac's size on random intervals. |
| Unlock | Defeat Mega Satan as Lilith. |
| History | This baby was added in Afterbirth. |