Published on February 6, 2021
Updated on October 23, 2022

How to Play Sega Genesis, Sega CD & 32X Games on Your Windows PC

In this guide, we will be talking about how to play Sega Genesis along with Sega CD and 32X Games on your Windows PC. The guide will also include other alternatives to Kega Fusion in case if you’re looking for other emulators to try out.

Once upon a time, a brutal war happened in the 90s where both fighters had their guns equipped with ruthless tools of destruction. Tools that, of course, destroyed our pockets as we hurried to get them. The brutal war which I’m talking about is between Sega and Nintendo back in 1989.

Well, you see, when Nintendo developed the NES, SEGA responded with the Sega Genesis, and since then, the console wars ignited. It was a brutal competition that caused the death of countless pockets, but these pockets will be forever indebted if you ask me. How? it’s the memories, my friend.

However, you are probably yearning to the past and want to relive those memories, right? Well, good for you, there’s a way to do that. There are numbers of emulators out there that will enable you to play your favourite SEGA consoles on PC, but which ones should you use you wonder? Don’t worry. There’s an emulator called Kega Fusion which is capable of doing that. What? you’ve never heard of it? it’s okay!

Come read all about how to play Sega Genesis, Sega CD, 32X, Master System, and Game Gear games on your Windows PC with a touch on the button.

Table of Contents

About Kega Fusion

Kega Fusion is an excellent emulator which is capable of running a wide range of systems. These systems include Game Gear, Sega Master System, Sega Genesis, Sega CD, 32X, and Sega CD 32X. Surprisingly, each system is emulated decently and offers somewhat perfect compatibility.

What makes Kega Fusion a big deal is its ability to run all of these systems using one single emulator. However, the aforementioned isn’t the only program capable of such a thing. There are other alternatives which I’ll be discussing below this guide.

To get your hands on Kega Fusion, simply download it from The Emulator Zone website. The website can be accessed here. Note that the emulator hasn’t been updated for 9 years now. Despite that, it still holds up today’s standards and is still recommended by the emulation.gametechwiki.

How do I install the Kega Fusion?

Kega Fusion is quite easy to install since it’s a standalone program that doesn’t require an install wizard. Just extract the emulator from the zip file, and you are good to go. Note that you should place the emulator in a folder other than the C/drive, otherwise, you will be prone to some issues such as the emulator not saving your progress, or sudden corrupt in your save files.

Where do I get the games?

Now, where can you get the games you may ask. Who knows, maybe they are hidden in Atlantis, maybe in the deserts of Africa, or maybe in the jungle. Who knows?. Just kidding, one single google search will send you to a plethora of websites that provide all the ROMs you need. Do not worry about malware or viruses, the first page contains trustworthy domains that will cause no harm to your hardware.

Configuring the keyboard or gamepad using Kega Fusion

First of all, to see this screen, go to your emulator> Option>Set Config. Then, click on the controller’s tab.

As you can see, normally, any emulator is configured to use your keyboard as the default option to play your games. Configuring the Sega Genesis or any of the console’s controls can get a bit confusing. That is why I recommend taking your time to configure each button the way you’ll find yourself comfortable with. By the way, note that Port 1 means player 1, while Port 2 means player 2.

Also, you should note that the Genesis had two types of controllers: a 3-button and 6-button. By default, Kega Fusion is set to emulator the 3-button controller which looked like this. You can change it to 6-button by clicking on the drop-down selection next to Port 1.

Now, if you want to set up a controller what you should do in the beginning is to plug your controller in your computer. Kega Fusion supports a variety of controllers, but am not sure if it supports controllers like the Switch or the OUYA. Also, note that you should plug your controller while your game isn’t running. Anyway, once you do all that, go to Set Config window. Click on “1. Keyboard” for Port 1 and select your gamepad. You should see something like the picture above you.

To map your controller buttons, press ” define ‘ after you have chosen the gamepad. Once you do that, you should see a short text below: Press Button/Direction or Keyboard Key to use for. What you should do at this moment is to press buttons to configure your controls. After you’re done mapping your controls, don’t forget to press OK. In case if you want to configure player 2 buttons, just repeat the same process.

How do I load up the games using Kega Fusion?

Unlike other emulators which have a dedicated Rom folder, Kega fusion doesn’t have it. Luckily, you can always create a new folder and name it either ” games “, ” Roms ” or ” ISO” then put it inside your emulator folder with all of your games inside.

As I have already stated above, Kega Fusion is a multi-system emulator capable of emulating a handful of SEGA consoles. Now let’s say you wanted to load up a Sega Genesis (Mega Drive) game. It’s simple: Go to Load Genesis/ 32X ROM. Next, a window will pop up. After that, what you should do is to navigate your games are located. Click on the game you want to play and it should boot up immediately. Don’t worry about extracting games, Kega Fusion can run them directly as either a Zip or 7z file.

How to hide FPS and go fullscreen

The first time you boot up Kega Fusion you’ll notice FPS numbers on the bottom of your left. Now for me, they aren’t a big deal, but for some, it may be annoying. To remove the FPS counter, go to Options > Show FPS. While you’re here, you should also click on Show SegaCD LEDs. This hides the bars that display when playing a Sega CD game.

In case if you want to play on fullscreen, simply go to Video > Fullscreen. Or press Alt+Enter. And then to exit full screen, press Esc or Alt+Enter.

Unable to set display mode issue

Windows 10 users may encounter an issue when trying to enter fullscreen. They will end up receiving the following error:

Unable to set display mode

Luckily, there’s a fix for anything. Here’s how to do it:

1.Right-click KegaFusion.exe and left-click Properties.
2.Click on the Compatibility tab
3.Then run this program using compatibility mode set on Windows 7
4.Click OK

Kega Fusion crashes when trying to enter fullscreen mode

Kega Fusion was developed during a time where Windows 8 and Windows 10 weren’t a thing. That is why don’t get frustrated when you face annoying issues using the aforementioned systems. One issue is that may frustrate you is when you are about to enter fullscreen mode and the emulator straight up crashes on your face with the following message from the previous section. To fix it, just do the same thing as above:

1.Right-click KegaFusion.exe and left-click Properties.
2.Click on the Compatibility tab
3.Then run this program using compatibility mode set on Windows 7
4.Click OK

Note that every time you boot up the emulator, you’ll notice a message poping-up like this:
Do you want to allow the following program from an unknown publisher to make changes to this computer?” Every time you boot it up, you’ll have to accept the message and click OK.

How do I save my progress using Kega Fusion?

Save states is the feature that saves the exact spot you are in any game. You can use this feature manually by either going into the File menu or by quick keyboard shortcuts. (F5)

1.To save your game, simply do this: Go to File > Save State. Or, use the keyboard shortcut to save a state (F5).
2.To load your save state, simply do this: Go to File > Load State. Or, use the keyboard shortcut to load a save (F8).
3.To change your save or load slot, simply do this: Go to File > Change State Slot.  Or, use the keyboard shortcut for switching between slots (F6) (backwards) and (F7) (forward). Note that the emulator allows up to ten save slots.

How to capture a screenshot using Kega Fusion

Just like any retro emulator, Kega Fusion allows taking screenshots. However, you’ll have to make some tweaks first before you start capturing screenshots. First of all, go to Options > Set Config, then click on the Extras tab which I underlined above you.

Alright, what you should do here is follow these basic steps:

  • In the Folder field, click on Browse, and set the destination where you’d like your screenshot to be saved to.
  • Next, under ” file format , choose BMP unc. You may be wondering why I have it set on TGA CMP. Well, it’s because I don’t use this feature. I have other tools to take screenshots with. But anyway, you may also ask ” why do I need to choose BMP unc”. Well, you see it’s because the above formats aren’t supported anymore, while BMP unc is the only one supported.
  • Next, under “Output Stage”, select Raw. This saves your screenshots in their correct 1:1 aspect ratio without any additional filters. Don’t forget to click OK when you are done.
  • Lastly, once you have done all that go to File > Save Screenshot. Or,  you could also press Shift+F12 using your keyboard.

How to record my gameplay using Kega Fusion

Did you feel badass playing The Adventures of Batman & Robin then you felt the need to record yourself and show off? Kega Fusion got you covered.  Here’s how you do it:

  • First, start your game until you reach the point you want to record
  • Go to Video > Log AVI File.
  • Once you do that, you’ll be prompted to where you want to record your progress to. All you have to do is select a location, name it, and click Save. After that, Kega Fusion will initiate recording
  • Once you’re done with recording, head back to Video > Log AVI File and you’ll notice an “AVI Logging Stopped” message on the bottom right of the screen.

My recorded video can’t be uploaded to Youtube

Most of the time, AVI videos are bound to be rejected by Youtube when you’re about to upload them. In this case, just convert the AVI file to a supported format.  You can use any video converter to convert it either to MP4 or any other format. I recommend Handbrake or Freemake. There are other alternatives, but these are the ones I use.

How to use Game Genie and Pro Action Replay cheats

Just like any emulator, Kega Fusion has the Game Genie and Pro Action Replay cheat option. To access it, do the following:

  • First of all, load up your game
  • Next, click on File > Game Genie / PAR.
  • Click on Add code, and paste your cheat code. Note that it mustn’t have space. Otherwise, it won’t work
  • In the description field, give a name to your code. Frankly, it doesn’t matter what you name it.
  • Repeat the process for multiple codes and games
  • Don’t forget to click OK hen you’re done.
  • Check if the codes are working. If not, get them from sites like Game Genie, etherealgames, or pixel-madness.
  • That’s it

Fast forward feature

Fast forward is the feature that speeds up any game. To use it, go to Options > Fast Forward. Or press the Backspace key to toggle it on/off.

I can’t save anything using Kega Fusion

We have talked about this issue before for so many times. The only way to fix it to put the emulator into a folder other than the C/drive.

About Sega CD when using Kega Fusion

What is a SEGA CD

The Sega CD, released as the Mega-CD. in most regions outside North America and Brazil, is a CD-ROM accessory for the Mega Drive/Genesis designed and produced by Sega as part of the fourth generation of video game consoles. It was released on December 12, 1991, in Japan, October 15, 1992, in North America, and April 2, 1993, in Europe. The Sega CD plays CD-based games and adds hardware functionality such as a faster central processing unit and graphic enhancements like sprite scaling and rotation. It can also play audio CDs and CD+G discs.

What you should know when downloading SEGA CD ROMs

Before you start your journey with Sega CD emulation, please, read this:

First of all, Sega CD games have a larger size than the Sega Genesis or from any of the consoles stated above. They’re 100 times larger than the Sega Genesis in case if you are wondering. When downloading any SEGA CD ROM, bear in mind that it consists of one or more BIN files (the game’s data), audio tracks, and a CUE sheet. The CUE sheet is a simple text file with a programmatic list of the audio tracks.

In addition, SEGA CD  has four types of ISO. When you download any SEGA CD game from a ROM website, it’ll be as the following:

  • Binary CUE/BIN: This is the popular format of SEGA CD games at the moment. All files are BIN files, and they are organized as audio tracks when checking the CUE sheet.
  • A standard BIN/CUE: Usually, this is how video game ISOs are ripped. When opening the CUE sheet, you’ll the audio tracks are listed even though there are no actual audio files present.
  • An ISO/MP3: This used to be the popular format back in the 2000s and early 2010s. This format is supported by Kega Fusion, so you shouldn’t worry.
  • An ISO/WAV: Finally, this is an ISO/MP3 with the audio tracks converted to WAV format. This format is compatible with any Sega Genesis emulator which is capable of running SEGA CD games.

How Kega Fusion handles SEGA CD

The way Kega Fusion treats SEGA CD is different than the way things work with the real Sega CD hardware. For those of you who don’t know, SEGA CD has internal memory and external RAM carts. Both of these don’t hold up much. However, thanks to Kega Fusion, the emulator can give a certain game both its own internal memory and its own external RAM cart.

However, there’s something I forgot to tell you about.  You need to be formatting it each time you play a new game. Just like the real thing, internal memory and each new RAM cart had to be formatted in the past in order to play games. It’s the same thing with Kega Fusion since it gives each game its own memory. Note that some games won’t even allow you to play until the memory is formatted.

Where can I get SEGA CD BIOS?

Just like PCSX2, you need a Bios to boot up SEGA CD games. There’s a Bios for each region, and all of them can be accessed from here. Or you can download each Bios for the links below:

How do I set up the BIOS using Kega Fusion?

Once you download the BIOS, extract it from its zip file and put it in the Kega Fusion folder. Next, what you should do is go to Options > Set Config. Then click on the Sega CD section. Lastly, press the browse button which I had underlined and navigate to the BIOS file. Don’t forget to click on save, and then OK.

How do I load SEGA CD games?

Before you try to load up your SEGA CD game, here are a few things you should consider:

  1. If you’ve downloaded a SEGA CD in RAR or 7Z file, extract the game from these two by right-clicking and going to Winrar/7-zip> Extract here.
  2. If you have downloaded an ISO/MP3 or BIN/CUE, make sure it includes a CUE sheet. Without it, the game is bound not to work.
  3. If you find the CUE sheet, make sure the name of the ISO is identical to the actual ISO. Sometimes this doesn’t matter, but still.
  4. Make sure all the audio tracks match the name of the actual audio tracks.
  5. Now, once you’ve done that, go to File > Load SegaCD Image. Note that if the game is in ISO format, you just have to click on the CUE sheet in order for the game to load up. On the one hand,  if the chosen game is just a single ISO file, then you simply click on the ISO file to boot the game.

How to enable Perfect Sync in Kega Fusion?

This feature is essential when trying to emulate certain games. Without it, some games will lock up at a specific point at the beginning of the game.

Perfect Sync isn’t automatically enabled by the emulator. Instead, you’ll have to manually enable it. To do that, go Option > Perfect Sync, or simply press Ctrl+P. Note that this feature won’t work if you had a game running in the first place. So, restart for the feature to take effect. In addition, you should bear in mind that using this feature with some games may cause crashes and several issues.

How to format SEGA CD Memory?

This process is essential when attempting to format a SEGA CD Memory. As stated above, when using Kega Fusion, the user has to format the memory each time they put in a new game. The process is simple:

  • At the SEGA CD BIOS screen, press the button which you mapped as B
  • You will arrive at the CD Player screen like the one below you. What you should do is move the hand to Option.

  • Next, you’ll arrive at a screen with some memory info, just continue from there.
  • After this, you will arrive at a screen where you can manage your memory. Firstly, format the internal memory by pressing the first format option you see below you

  • Select YES to format
  • Now, format the RAM Cart by going to the second format option, and select YES to format.
  • Once you’re done, select Exit.
  • Lastly, at the CD Player screen, select CD-ROM to launch the game.

How do I swap Discs using Kega Fusion?

Just like ePSXE, SEGA CD has games that required more than one CD. For example, Dracula Unleashed (2 Discs), Slam City with Scottie Pippen (4 discs), and Ground Zero Texas (2 discs). To swap discs you should see a flashing CD tray icon in the bottom left of the screen. This means the emulated CD tray is OPEN. You can safely load a second Sega CD ISO without any issues.

How to remove SEGA CD LEDs

When emulating SEGA CD games, you’ll notice two lights on the bottom of your left that blinks when it’s processing. One is green and the other is red. Some may find this distracting as it breaks the experience for them. Thankfully, it can be removed by going to Options > Show SegaCD LEDs.

Some issues that you may encounter when emulating SEGA CD games

Here are some problems that you may encounter when using the SEGA CD emulation:

1. Backup RAM not initialized error

The fix: format your memory

2. SEGA CD freezes in the beginning

The fix: enable Perfect Sync

3. SEGA CD game has no music

Check the ” How do I load up SEGA CD games ” section

Alternative to Kega Fusion

Here’s one emulator that is similar to Kega Fusion


BlastEm is an open-source, highly accurate emulator for the Genesis/Megadrive that runs on modest hardware. It is the first emulator to properly run Titan’s impressive Overdrive 2 demo, and it is the only other emulator besides Genesis Plus GX that can properly run the original Overdrive. It is the only emulator other than Exodus that passes Nemesis’ VDP FIFO Testing ROM, can display “Direct Color DMA” demos, and emulates CRAM contention (aka CRAM dots). The emulator offers a variety of features that are worth checking out from the official website. The emulator is still active, so expect to see more updates and enhancements in the future.


In this guide, I talked about how to play your favorite Sega Genesis, Sega CD & 32X Games on your PC. I also included other alternatives to Kega Fusion in case if you’re looking for other emulators. Now, as I said, Kega Fusion is no longer active, but it’s still recommended according to the page. I hope this guide helped you, and thank you for reading.

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I'm just your average gamer who enjoys hunting hidden gems and underrated games. My love for Onimusha: Dawn of Dreams is like a truck and I recommend that you play it.


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