An Ukagaka 伺か or Nanika 何か, also known as a Ghost, is a set of characters that sit on your desktop and talk to each other. They may have other functions or plug-ins that let them do other things, but their primary purpose is to keep you amused by chatting with each other or with you, the user. Without getting too much into the technical nitty-gritty of these things (although I have done that if you're interested), you run Ghosts using a program called SSP. If you've ever used FLELEs, you should be familiar with it.
There are many Ghosts out there on various sites, but almost all of them are in Japanese, Chinese, Korean, and possibly Russian although I've never found one. I just know a Russian fork exists. However, Hunter and Smoker are 100% in English for your enjoyment! Here are some of their current features.
They are currently in beta but are completely functional right now, so don't worry! There's just stuff I still want to add to them, like new items and the like. There are also still a few little bugs floating around that I am trying to get rid of, but they should be minor.
Here's a demo video of them if you want to see how it works.
-Unzip it in a folder somewhere
The program should boot up already in English, and Hunter and Smoker should greet you. However, if this doesn't work or isn't an option for you for whatever reason...
-Unzip it/install it somewhere.
-Run SSP.EXE. It should load up a catgirl ghost named Emily. If you right click her, you should see a menu. Near the bottom it should have a tab called Language, and there you can set the program to English.
-Reboot SSP and see if the menus are in English! If they are, you're in good shape.
-Download this hsballoon.zip and drag and drop it on the catgirl's face. It should look like she's installing something.
-Do the same thing with this hunter_smoker.nar.
-Once she's done, right click her again and go to Change Ghost. You should see Hunter and Smoker listed there, so swap over to them. Tadah!
IF YOU ALREADY HAVE SSP
-Download hsballoon.zip and hunter_smoker.nar
-Drag and drop them on your current Ghost
-They should install and switch over! If not you can go to Change Ghost via the right click menu and switch over manually.
Unfortunately, SSP only works on Windows systems (although it is compatible with XP, 7, and 8 I think), although there are Mac and Linux forks! I however can't really vouch for how well they work, and their sites are mostly in Japanese. A Mac user did tell me they got them working on one of them though, so it is possible I think.
Mac - Ukagaka on Macs, NiseRingo, PlayonMac+SSP
Linux - NINIX and NINIX-AYA
I do update them on occasion although I've been really lazy about it lately, oops. I've written up a lot of my updates for them over here. You can leave me comments if you find any weird bugs or have any questions or anything!