Hello gamers, I have made a controller configuration to try and emulate more closely to Bloodborne on PS4.
In order to use this, you will need to add the game to your steam library. To do this, go to "Games" (at the top) > "Add a non-Steam Product" > Locate the game with the browse function, and select the .exe within the game's folder. I suggest copy and pasting the entire BBPSX folder into your steam apps common folder. (more advanced)
After you have added the game (not 100% sure if this is necessary, but I would just do it to make sure it works) rename the game in your library to Bloodborne (PSX).
After the rename, simply paste this: steam://controllerconfig/bloodborne%20%28psx%29/2739692712 into your browser or command line and it will pop up with a configuration PREVIEW window. Make sure to add the configuration. -- This is also available through the community configs in the controller menu as well.
If this gets more attention and people start using it, I will add pictures to help with installation, but overall it's very simple.