On the April Fools discussion, there are two different April Fools versions. An old one where most of the girls were removed and the player is female, and the one from this year where a health bar was added, and certain actions can cause the player harm, potentially resulting in death (also Jubilee was removed from it).
Theoretically, the assets from the former could be used in a mod to allow the option of playing as a female, though all it really amounts to is replacing the dick sprites with vagina ones, and some adjusted animations for the girls interacting with it. The main issue would be adjusting scene dialogue for all the characters to reflect the change.
As an idiot, can someone explain how I'm meant to add this to the game? Glancing through the OP and the main mods there doesn't seem to be a guide or anything. Do I just dump them in a folder? If so which one?
They aren't a proper mod at present, nor are they named properly in that zip to just replace existing art. I did offer some explanation on how one could try putting them in the game
here, and SaruDude made a mod including at least some of the outfits
here though it seems there are a few bugs with it presently.