I will tell you how to get the game uncensored in case that's all you want or want to try content mods later on.
Other Koikatsu Party Guides:
Read Before Continuing
If you plan on making both the males and females uncensored, you can forgo the first part of the guide, and skip to "The Patch (Part #2)" as it is not necessary. The kPlug mod offers both uncensores, and "movable parts" for the females due to added bones in the naughty area.
I'm going to assume you know the minimum basics of modding at least for the uncensored patch, and have the patch provided by Illusion.
First off you need to install the latest version of BepInEx. I will include them in the link, but if things ever get updated you will need to get them from the site. Make sure you use the correct folder for your operating system. x64 for 64-bit and x86 for 32-bit. Do not use both. After it's downloaded all you need to do is drag and drop it in the game installation folder.
It should be located in:
- Steam\steamapps\common\Koikatsu Party
This is the essential not only for this mod, but some of the other mods you'll find on the internet.
After you're done with the BepInEx install next is the actual uncensored patch. Unzip UncensoredGirlModel.7z and navigate one folder deep until you see abdata and the readme file. You can drag and drop the folder into your own install folder, but I recommend that you make back ups of your original files if you ever want to revert back. After that drag and drop the Demosaic.dll into your BepInEx folder and you're done. The females will now be uncensored.
If you want the males uncensored and more gameplay choices/changes, continue to the next section.
The Patch (Part #2)
This part is a bit more complicated so I will try to explain it the best I can.
Unzip the IPA folder and drag and drop into the install folder. After that is done drag the game executable, which is Koikatsu Party.exe, onto the IPA executable. You may see a black box flash on the screen. That's a CMD prompt box and shouldn't be worried about it. You should see some new folders in your directory. We'll need those in a moment. After it's done, unzip the kPlug folder and drag and drop it into the install directory. Say yes to all overwrites. After that navigate the mod folder to BepInEx/IPA/KoikPlugins.dll Copy this file to your Steam folder and paste it there:
- Steam\steamapps\common\Koikatsu Party\Plugins
After that, I recommend that you read the features in kPlugManual located in:
- Steam\steamapps\common\Koikatsu Party\kPlugManual
It will help you get started with all the controls and gameplay features.
I will prove one feature here in case you don't want to use the first person mode and go back to vanilla H scene. Once it started just hit F9 to bring back the overlay and hit control + keypad 0 to go back to the normal camera. To revert back, hit F9 again and hit Shift for first person mode.
There is a rare bug where the game will hit an infinite loading screen. If this happens, hit LEFT alt + LEFT shift + Q. This will save the game and you can exit the game will your data intact.
Alternative Method (Easy Way)
Download latest HF Patch release from (here). You should get a single .exe file and 2 or more .bin files.