Question: binding of isaac how to unlock items?
Answer: Blue Baby: Forget Me Now. Active item. ...  Cain: Bomb Bag. Passive item. ...  Eden: Book of Secrets. Active item. ...  Eve: Razor Blade. Active item. ...  Isaac: Mom's Knife. Passive item. ...  The Lost: The Mind. Passive item. ...  Magdalena: Guarding Angel. Passive item.