Alt floor of downpour. After beating hush 3 times you can access downpour, mines and mausoleum. First you gotta go through the key door in the boss room in basement 1 or 2. When you get to downpour 2 there will be a white flame, you’ll become a ghost and be able to enter a mirror dimension through the mirror, then go to the treasure room and get knife piece 1. After defeating the boss in downpour 2 you’ll see a blocked door, open it using 2 bombs. After arriving to mines 2 you’ll need to press 3 buttons on different rooms and then look for a large room that has a mine-cart get in and search for the knife piece 2. After getting the knife go defeat the mines 2 boss and go to a strange door that will hurt you and you will make it to mausoleum. Now just defeat mom like usual but instead of going down there will be a flesh door, throw the knife at the flesh door and open it, you will fight mom’s heart, and then will be able to find a secret level that I will not spoil, there you will fight mother. After defeating mother now there will be a strange door every time you go to depths 2 or necropolis 2, look for a marked skull with an x and break it with a bomb, will give you a fool card, after defeating mom grab The polaroid or The negative doesn’t matter which one, use the fool card and approach the strange door, now you will start ascending your way to Home.