Go into the Main Floor TV Room, and interact with the Sheet Covered Object. While huge, Isaac is invincible and can crush objects, doors and enemies For the duration of the effect this gives you a x4 Damage Multiplier and +2.
Now where would the other head come from? From the body. Inspiration: The design of this product is inspired by the game 'the binding of isaac' which must be an excellent gift for friends who like this game. , Nightfall, The Last Question, The Dying Night, The C-Chute, Mirror-Image, and many others. Your custom challenge will be located in a mod folder within the Binding of Isaac mods folder. The Binding of Isaac is completely luck based and randomized, so unless you play seeded runs, nothing will be the same thing twice. I trembled landing onto the cold hard stone of the basement.