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Pseudo Saturn Kai is my (cafe-alpha) fork of Pseudo Saturn.
What is Pseudo Saturn ? This is a software exploit allowing to run Saturn game backups (burned on CD-R) with only the need of a Saturn Cartridge.
And, Pseudo Saturn is an open source project whose main developper is CyberWarriorX.
There's no need to modify your console internals ! Just plug a cartridge into your favorite Saturn, and you're ready to enjoy backup copies from your game collection 
Table of contents :
- Features list.
- Screenshots and videos.
- Download section.
- Cartridge labels.
- Frequently Asked Questions.
- Save data page.
- Tutorials page.
- Game Compatibility List.
- Compatible with legacy cartridges such as Action Replay.
- Play import games ("region free") (*1).
- Boot games from CD-R without the need of any hardware mod.
- Built-in cheat codes list.
- Cheat code manual input, for experienced users. 
- Image selection menu for Rhea/Phoebe, Fenrir and Satiator ODEs.
- In-game system reset with A+B+C+Start key combination.
- Save Data Manager, similar to the one provided by Saturn's BIOS.
- Save data import and export to Gamer's Cartridge, Fenrir and Satiator.
- Memory cartridge and Floppy Disk Drive support on SD card. (*2)
- Import save data from CDROM or SD card. (*2)
- Boot simple homebrew games/demo from SD card. (*2)
(*1) "Region free" feature bypasses region protection, but doesn't changes display frequency, hence some games designed for PAL (50 Hz) systems won't work on NTSC (60 Hz) systems and vice versa.
(*2) : this won't magically add SD card features to your Action Replay 
SD card related features and some other ones are available only when Gamer's Cartridge is used.
 Pseudo Saturn 0.832 being flashed to Action Replay. Thanks to Zorlon for the video 
(.mp4 file, in the case video on youtube is blocked/deleted/whatever.)
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 Pseudo Saturn Kai demo (firmware install, unlock CDROM, executable upload from PC) on USB dev cart. (.avi file, in the case video on youtube is blocked/deleted/whatever.) |
 Rhea/Phoebe image selection menu example. Also featuring great startup logo by Alien^PDX
(Older startup logo animation available here) |
 Pseudo Saturn Kai Update Video by Retro Sim
(Similar video for v6.274 available here) |
Pseudo Saturn Kai is and will always be free : just download latest version below and have fun with it
Last updated : 2024 January 14thYou can extract files from archives by using 7zip software.
pskai_release_20240114.7z (57MB)
 readme
readme for RmenuKai
readme for Fenrir Loader Kai
readme for Satiator Menu Kai
built-in cheat codes list
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Pseudo Saturn Kai 6.545 Flasher
+ Save Data Manager & extra save data + Patcher utility + SaveRepack utility + source code. Supported devices : - Action Replay (and their clones) - USB dev cart - Gamer's Cartridge - Rhea/Phoebe ODEs - Fenrir ODE - Satiator ODE
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| pseudo_saturn_cdpatch_20190521.7z | Pseudo Saturn Patcher Utility 1.0.0.4 |
Notes regarding patcher utility :
- Patching is not required when an ODE is used.
- List of games requiring patching can be found in section 7b of the Pseudo Saturn Kai readme or the on the compatibility list page.
Old files, kept here for reference :
Note #1 : Wrong flash operation may brick your cartridge. Please flash your cartridge at your own risks !
Note #2 : Action Replay firmwares and original Pseudo Saturn firmwares are also included.
Please don't flash old firmwares unless you know what you are doing.
Last updated : 2019 April 22ndA bit tired of the vintage label the cartridge was sold with ? Then how about replacing this old by another one more about Pseudo Saturn Kai ?
Note: the labels below are not some kind of "Pseudo Saturn Kai official" labels, but just a collection of labels made by friends. If you don't like theses labels, then feel free to design and print your own one.
Compilation of labels for Pseudo Saturn Kai lite. Credits : Neotendo and Darius. |
| labels_lite_mix_20190422.pdf (1.9 MB)
labels_lite_mix_20190422.png (4.6 MB)
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All labels in a ready-to-print A4 page |
Q: I'm already using Pseudo Saturn. Is there an interest for me to upgrade to Pseudo Saturn Kai ?
A: For Action Replay users, first release of Pseudo Saturn Kai is "just" Pseudo Saturn with a slightly improved game compatibility.
Since there's a small risk to brick Action Replay cartridge when flashing it, it's not recommended to upgrade to Pseudo Saturn Kai if you don't need it.
Examples of cases upgrading to Pseudo Saturn Kai is not useful for you :
- You hardmodded (modchip, ODE, etc) your Saturn.
- Pseudo Saturn version you're using is enough for your needs : please keep to use it until you find incompatible game, and upgrade to Pseudo Saturn Kai if this game is marked as compatible in game compatibility list.
Q: I have a technical/game compatibility/whatever request. Where shoud I ask it ?
A: Pseudo Saturn Kai has its official thread on segaxtreme forums (Thank you vbt for the thread sticky bonus 
), so please first verify that your question is not already answered there, and post your question there if needed.
Q: Is there any tutorial in order to install Pseudo Saturn Kai on my cartridge ?
A: Yes. It can be found in Pseudo Saturn Kai's howto page.
Giving a view to Pseudo Saturn Kai Update Video by Retro Sim may also be helpful.
Q: I want XYZ feature implemented right now !!!
A: No problem : sources are available in SRC folder of flasher utility CDROM, so please get the things done by yourself.
Q: When will you add cheat codes support to Pseudo Saturn Kai ?
A: Cheat codes are now available in v6.274 or any eventual more recent version
Q: Can I add my own cheat codes to Pseudo Saturn Kai ?
A: Yes : up to 16 codes, shared between all games, can be saved to Saturn internal memory.
Q: Can I play Marvel vs Street Fighter / Ultraman / Metal Slug / etc game with Gamer's Cartridge ?
A: No, because Gamer's Cartridge doesn't features 1MB/4MB RAM expansion and boot ROM.
Complete list of theses games requiring RAM/ROM cartridge can be found on Satakore.
Please note that using extra Action Replay won't be a lot better : games requiring ROM cartridge won't work, and expect few exceptions (Cotton 2), games requiring extra RAM will suffer from graphical glitches.
Q: Can I play commercial games from SD card with Gamer's Cartridge ?
A: No. Gamer's Cartridge is a XL-sized memory cartridge using SD card which also plays CD-R games, nothing else.
Q: Can I install Pseudo Saturn Kai on official memory cartridge ?
A: No : only boot cartridges (Action Replay, Memory Card Plus, Game Shark, and their clones) are compatible with Pseudo Saturn.
Q: "SD card init error" screen is displayed when using my Gamer's Cartridge. What should I do in order to fix this ?
A: First, Gamer's Cartridge requires a SD card inserted in order to work. Please insert a SD card if it's not already done.
If you inserted a SD card, but still get this "SD card init error" screen displayed, please follow SD card setup instructions if it's not already done.
If your SD card is still not recognized even after following setup instructions, please try with SD card from another brand ... it should work on next try
(Gamer's Cartridge doesn't requires "large capacity & expensive" SD card, so before purchasing a new SD card for testing, please give a try with the old SD card you used for your digital camera 10 years ago )
Q: Can I play Panzer Dragoon Saga with Pseudo Saturn Kai ?
A: Panzer Dragoon Saga is a bit problematic game, but was reported working on all known Saturn hardware variations.
Note #1 : Before copying your game, patch its image file with Pseudo Saturn patcher utility. This is required to boot the game correctly.
Note #2 : JHL loader compatibility was improved in Pseudo Saturn Kai v6.483. Please update if you are using a version older than this one.
Note #3 : Virtual Memory Cart (saves on SD card) feature is not compatible with JHL loader, so if you want to use Panzer Dragoon save data, please import save data to internal save memory.
Q: When using Gamer's Cartridge, can I move my saves from internal memory to SD card for backup ?
And then, can I move back save data from SD card to internal save memory ?
A: Yes, it's possible : From firmware main menu, select "Save Data Manager" -> "Save Data Export/Dump" -> "Select Save(s) to export" -> "SD Card".
Then select the saves you want to backup. It's possible to select multiple saves with X button.
After confirming your selection, selected saves will be stored in your SD card's "SAVES\yyyymmdd" folder.
And of course, it's possible to import back theses saves with "Save Data Manager" -> "Save Data Import" feature.
Q: Do you have a list of PAL games that won't work correctly on a 60 Hz Saturn ?
A: Slicer1000 made a quite complete list of theses games, which can he found on his homepage.
You can also find another list on this tumblr page.
Q: "Firmware verification error" is displayed when trying to install Pseudo Saturn Kai ! What should I do ?
A: First, please take a deep breath, and DON'T reset your Saturn, because at that time cartridge is potentially bricked, hence may not boot correctly after that.
Instead, it is better to push Start button, and then select "Restart Flasher" menu item. Then, adjusting cartridge position in its slot (for example, lifting it by less than 1mm while verifying that cartridge IDs displayed on screen are correct) and retrying flashing operation will give a second chance to your cartridge.
There's no guarantee it can fix installation on your cartridge : if problems comes from dying flash chips, then this trick won't help a lot. And please install Pseudo Saturn Kai at your own risks !
Q: My "all-in-one" red cartridge doesn't wants to play Magic Knight Rayearth and some other games ! What should I do ?
A: Please try to put a shield around the PCB of your defective cartridge, and it may work better after that. More details are available in Pseudo Saturn Kai compatibility page.
Q: Is there a FAQ regarding Saturn cartridges ?
A: Yes, it is available on its own page.
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