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TerraOnion MODE - Dreamcast, Saturn & PlayStation ODE

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TerraOnion MODE - Dreamcast, Saturn & PlayStation ODE

By selecting a storage option you will receive a compatible storage device. Due to availability of supply we can only guarantee the storage device will be new and a brand name. We cannot guarantee any specific brand. By selecting NONE you will need to provide your own storage device.

This bracket allows for an easier & cleaner MODE install.
* SATURN USE: If you will be using this in a Saturn it is important you select the correct Type. Unfortunately there is no guaranteed way by looking at the outside of the system to know which Type to choose. This will require you to open your Saturn to determine which Type you need by unscrewing the Saturn and opening it up. CLICK HERE for a guide on how to determine which Type to choose


Intermediate Modification

WARNING: We consider this an Intermediate Level modification for the Saturn/Dreamcast. Meaning only those with some experience modding, disassembling systems, etc. should attempt this modification. Stone Age Gamer, nor the manufacturer, will warranty modifications that are not done properly. If you do not feel comfortable installing the MODE in the Saturn/Dreamcast yourself we highly suggest either using an approved modder (we offer this service for $44.99 which includes the 3D Printed Bracket, see Here for an installation guide using the bracket) or purchase a pre-installed system HERE or bundle the MODE and install service together HERE.



Mod Level: Expert

WARNING: We consider this an Expert Level modification for the PlayStation. Meaning only those with some significant modding experience should attempt this modification. Stone Age Gamer, nor the manufacturer, will warranty modifications that are not done properly. If you do not feel comfortable installing the MODE in the PlayStation yourself we highly suggest either using an approved modder (we offer this service for $99.99) or purchase a pre-installed system HERE or bundle the MODE and install service together HERE.

Compatible with Saturn and Dreamcast, same firmware for both systems. Compatible with both 20 pin and 21 pin Saturn consoles. Compatible with both 5v (VA0) and 3,3v (VA1) Dreamcast (proper voltage level conversion).


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    Street Racer
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    Invasion from Beyond
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    Motor Mash
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    Shadow Madness
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    Street Racer

  • Officially Licensed From:Piko Interactive


  • 100% compatible with all Saturn and Dreamcast games!
  • Auto region patching (loads games from different regions without patching games)
  • Auto detects the console it's plugged into. No jumpers to configure.
  • SATA 2.5 HDD compatible with exfat (works with both hard drives and SSD drives)
  • MicroSD
  • USB for USB thumbdrives and powered USB hard drives
  • Compatible with Redump and Tosec images (for both Dreamcast/Saturn)
  • Compatible with CDI, GDI, CCD, MDF, bin/iso+cue images
  • Plug and play, no soldering required!
  • 2 User interfaces: Simple list view and Advanced Cover Art
  • Supports multiple Disc games
  • Zero seek times providing faster load times
  • Supports Mpeg card, ActionReplay/PseudoSaturnKai, Saturn RAM cart compatible
  • DC Digital, DreamPSU and PicoPSU compatible

Tech Data:

  • 32-bit MCU at 168MHz with 192KB RAM
  • High performance FPGA for accurate data transfer speeds
  • USB 2.0 High Speed PHY for high transfer speed from SATA & USB
  • Full speed Memory card interface supporting up to 12MB/s
  • SATA to USB 2.0 bridge for high speed SATA hard disk access
  • Level translators to properly convert signal levels, and support Dreamcast VA0
  • Saturn 20pin and 21pin interface with mainboard autodetection
  • User IO connector for expansion, and support custom interface boards
  • Reset generation and Region selection for Saturn



A) PIRACY – Stone Age Gamer Retroworks, Inc. ("Stone Age Gamer") does not support or condone piracy. Flash carts, ODEs (optical drive emulators), and similar devices Stone Age Gamer sells and supports are intended to be used only for the following purposes: development, playing games licensed by Stone Age Gamer for use with the product, and/or playing currently owned personally backed-up games and media where it is legal to do so. Stone Age Gamer does not offer support for any other use of this product.

B) PERSONAL BACK-UPS – In many territories it is legal to make back-ups for personal use and/or archival purposes, however it may not be legal in all territories. Please learn the national and local laws regarding this subject before making back-ups for personal use. Please note, in most territories "Personal Back-up" means exactly that; back-ups you made yourself of games you currently own. This often does not include back-ups obtained via other methods (i.e. downloading), even if it is a game you physically own.

C) DAMAGE – Neither Stone Age Gamer or the manufacturer is responsible for any damage of property this product may cause. This is a new product intended to be used on electronic hardware that exceeds two decades in age and Stone Age Gamer can’t guarantee the condition of such hardware. USE AT YOUR OWN RISK.

D) MODIFICATION & USE – Any unauthorized modification and/or non-intended use of this or any other flash cart product sold by Stone Age Gamer shall void both manufacturer and retailer warranties of that product.

E) CLONE / MODIFIED CONSOLES – Flash carts / ODEs were developed and intended to be used on un-modified original hardware using original hardware accessories. Stone Age Gamer does not guarantee flash cart / ODE operation on clone consoles or modified consoles. Flash carts / ODEs may operate on some clone consoles or modified consoles. However, due to power consumption changes, random hardware changes and/or firmware updates of those consoles we cannot offer a guarantee of flash cart compatibility. Any returns due to incompatibility with clone consoles or modified consoles will result in no refund of any shipping costs and a 10% restocking fee if no defect is found during testing.


88 Reviews

  • 5
    Restored my Saturn

    Posted by Brandon Soards on Apr 15th 2023

    The Terraonion MODE brought my Saturn back to life. I didn`t realize how much failing optical sensors and disc rot was weighing on me. After I got this installed, it feels like I have a brand new console. I ordered the Saturn install kit. Screwing into a 3D-printed product was a little rough, but having gotten through it, it does hold the MODE in the Saturn very well. My only wish is that the SD card slot could`ve been mounted closer to the opening of the Saturn, so that I could remove it without taking off the top case. I only load on bin/cues of games I physically own, so it does mean I have to take it apart every time I load a new image.

  • 5
    Classic gaming, modern convenience

    Posted by Hammer on Mar 23rd 2023

    MODE was super easy to install in a Dreamcast and the optional bracket kept the install clean and tight. The product was delivered quickly and without any issues. Works great with an SSD.

  • 5

    Posted by Kep on Mar 10th 2023

    The MODE is outstanding for both the Saturn and Dreamcast. If you have the cash for it, then highly recommend it. Sure it`s not as cheap as the GDEMU or the Fenrir but it certainly pushes your retro consoles to the brink and keeps classic games from our childhood years alive for many years to come.

  • 5
    Really really nice

    Posted by mugen tenshin on Feb 18th 2023

    This thing is amazing, I love terraonions products but this one is probably my favorite. It was easy to install and get my games on an SD card and just play. Thank you for the fast shipping and great products! I will probably get another one for my Saturn at some point because it is that good.

  • 5
    Easy install and easy usage.

    Posted by Alex Shannon on Mar 26th 2022

    Incredibly easy to install and use.

  • 5
    dreamcast terraonion

    Posted by manuel a on Mar 21st 2022

    Best item for my dreamcast. If you got a dreamcast you need to get this!

  • 5
    Easy Install, Easy to Use

    Posted by Shawn on Mar 7th 2022

    I bought one each for my Saturn and my Dreamcast. Really nice to get rid of drive noise and seek times. Very easy to install, and works with basically every version of the consoles except the VA2 Dreamcast. I used the mounting kits from Laser Bear to make install with SSD super clean while giving me access to the buttons and SD card. Very easy to load games and handles a lot of formats for your games.

  • 5
    The Pricey but Excellent MODE

    Posted by Adam Ross on Mar 7th 2022

    I own two of these products now. One for my dreamcast and the other for my Saturn. I've had ZERO issues with the MODE. It's easy to set up and i've run into no compatibility issues whatsoever. IMO it's the best way to experience the Saturn library since most of the best games cost well over the price of the MODE. Dreamcast provides a great experience as well. I hope to get another for my Playstation at some point.

  • 5

    Posted by Nova on Feb 12th 2022

    This is an excellent piece of technology and a must-have for Dreamcast and Saturn enthusiast!