The Binding of Isaac : AfterBirth / How to Unlock 'Blinding Baby'

Lots of people know and sites write about the method of Unlocking &Baby&is to fill all completion marks (on Hard) with &Lost'. But it is NOT ture. Here is how to unlock &Baby&achievement What you need to have : Blank Card(active item), The Sun(card) What you need to do : Simply, Just use &Card&while you have &Sun& That&it. (No matter what your character is)