The next downloadable content for The Binding of Isaac: Rebirth is now available, called Repentance, and comes with a plethora of changes and updates, as well as new characters! Here's how to get Jacob and Esau!
How to unlock Jacob by binding Isaac Repentance
Unlocking the new character Jaboc and Esau is actually a difficult task as it comes in many different parts. You need to find and get two pieces of knife to unlock the alternate womb which unlocks this character.
Part One – First Piece of Knife
The first piece of knife is in the new area called Downpour. This room is on the second floor of Downpour, everything needs to be cleaned and you need to find a mirror located in one of the rooms; however, once you locate the mirror, it's not the last step, as you also need to find white fire located on the same floor.
Once the white light has been found, you need to enter it and damage yourself. You will then transform into a ghost-like form called The Lost, and leave your body behind. Now, as The Lost, you must return to the mirror and enter it. Inside the mirror, you are in an inverted world of the world you just left.
Check your map and head to the item room, but all the enemies are back, so be very careful and clear everything until you get to the item room. Inside the room you will find your first piece of knife. You can continue as The Lost, but it will be incredibly difficult, so it might be a good idea to go back through the looking glass and continue.
Part Two – Second Piece of Knife
The second knife is on the second floor of the Mines. On this floor, search all the rooms for three yellow buttons and press them to press them. Pressing the last button unlocks a mine cart, which is somewhere on the ground. Find it, then lead it to a new area.
In this area you return to base Isaac, for some reason, and on this floor is the second piece of knife. It's not that easy, the second you acquire that piece of knife, an evil face is chasing you that can/will kill you in one shot.
Your way back may be blocked, so you must use bombs on the ground to open them while avoiding this demonic entity. You have to escape to get the second piece of knife, so this section may take a few tries! It's a challenge.
Tip: if you have a flight, it will make this area much more bearable!
Part Three – Kill a Heart
The third piece of knife is located after defeating mom. It's a long hard way, to be able to get the two pieces of knife and defeat mummy. By doing so, a secret door opens which only opens when obtaining the two pieces of knife.
Entering through this door leads you to another boss fight called Mom's Heart. Of course, it's a tall order... no pun intended, and the heart needs to die. Once that's done, you need to go down to the corpse floor.
Part Four - Unlocking Jacob and Esau
Go down the hole after the Mom's Heart fight and enter the Corpse Floor. Complete this floor to access the boss fight, called Mother's Broken Heart. Defeat this boss and enter the gold chest, and the credits will roll.
After the credits, Jacob and Esau will be unlocked!
If you're curious about everything that's been added to Repentance, we have the patch notes available!
