This nude mod replaces the the default Leon character you play in the game Resident Evil 4 with a nude version of the females Ada or Ashley that appear later inside the game. Depending on the options you choose you may play with either fully naked Ada or Ashley and if have the support from Ada or Ashley in the game in a specific chapters then she will also be nude, so you will have both nude while you play the game. Choosing the Special 2 costume option replaces Leon with Ashley, and the Special 1 and Normal costume options give you the nude Ada Wong character to play with. There is also a file containing some savegames that you can use to be able to check out a few different scenes where you can play with different character combinations.
To install the nude patch just extract the contents of the folder “Nude Mod” inside the main folder where you have the game Resident Evil 4 installed and just run the game to be able to play with the nude female characters right from the start instead of male Leon character that is used by default. To remove the nude patch just delete the folders “xfile” and “em” and their contents that you’ve extracted to enable the naked character modification.