-Subscribe to this mod.

-Launch the game and then exit the game.

-Locate ResourceExtractor.exe in the games's directory. It will be C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\tools\ResourceExtractor or something similar for most people.

-Launch ResourceExtractor.exe and follow the prompt on screen to unpack the files.

-After it is finished, go to your resources folder (C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\resources), and find the folder called "packed". Rename it to "packed_old" or anything else.

-Go to C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\resources-dlc3\sfx\backwards and rename all four files to something else.

-Go to C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\mods and find this mod. Open the folder and then copy the resources-dlc3 folder.

-Go to the root directory for the Binding of Isaac (C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth), and paste the resources-dlc3 folder.