TerraOnion MODE + Installation Bundle + Bracket

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TerraOnion MODE + Installation Bundle + Bracket

Due to supply chain issues and current demand this product is currently not eligible for the flash cart bulk discount.

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.

By selecting YES we will mod your Dreamcast with a new rechargeable and easily replaceable system battery.

By selecting YES we will upgrade your Saturn with FRAM. This means your save data will remain even if battery power is lost. Battery is still required for keeping system date.



PLEASE NOTE: Only PU18 Motherboards are compatible with the MODE and the Playstation kit.  Please check your model number to make sure you have a 500X or 550X model, we can only accept that model.



PLEASE NOTE: Modding/Installation Services typically take 2 - 5 days from the time we receive the console. The return shipping cost of this service is NOT eligible for flat rate shipping.

MOD CHIPS: Mod chips should have no affect on this modification. However, Stone Age Gamer offers no responsibility for a preexisting modifications. While rare, there could be a scenario where Stone Age Gamer has to replace your motherboard. We would not replace or reimburse the customer for any preexisting modification. If for some reason your modification is found to be incompatible with the MODE product Stone Age Gamer is not responsible for replacing or reimbursing the customer.

Now includes 3D Printed Bracket (Color will be Black for Saturn or White for Dreamcast - if you'd like to request another color please see our separate link for the MODE Bracket and mention in the customer notes during checkout if you prefer a different color you see available there)


You may send console in at anytime after purchasing or if you want to wait we automatically e-mail you once stock is about to arrive.

Ship just your Dreamcast/Saturn/Playstation with invoice to:
(please no AV cables, power cables, or accessories)

Stone Age Gamer - MODE
378 E. State St.
Salem, OH 44460

SATURN ADDITIONAL POWER: We will install all additional power cables for all Saturn models that may require it.

PLEASE READ: We highly suggest insuring your shipment to us. We are not responsible for any damage until the console is received and inspected. Your console must be in working order when inspected. We are not a repair service, we only provide the installation of the MODE product. Do NOT ship your console to us without purchasing this service first.


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A) PIRACY – Stone Age Gamer Retroworks, Inc. ("Stone Age Gamer") does not support or condone piracy. Flash carts 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 were developed and intended to be used on un-modified original hardware using original hardware accessories. Stone Age Gamer does not guarantee flash cart operation on clone consoles or modified consoles. Flash carts 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.


7 Reviews

  • 5
    PS1 mode installation bundle

    Posted by Mike C. on Nov 13th 2021

    This process was very easy and professionally handled by Stone Age Gamer. They actively communicated with me when to send my PS1 to them for service, and the turnaround time was quick, within 2 days. Well worth it for the exceptional service they provide. If you are not comfortable removing CPU pins, these guys can.
    5 Stars all around.

  • 5
    Outstanding Service

    Posted by Pejman Roozbeh on Oct 18th 2021

    I sent in my Sega Saturn to get TerraOnion Mode professionally installed with my Mode purchase and I am very happy with both the product and how quickly it was worked on and shipped back to me. Not only that, but the crew here at StoneAge Gamer has been exceedingly helpful and communicative throughout the process. They were very patient and informative in answering my questions and additional requests as I prepared sending in my console. They even helped me customize another pre-modded console purchase while helping me with this separate service. I always felt very well taken care of throughout the entire process and will more than gladly return to StoneAge Gamer for more of my retrogaming needs! 7 out of 5 stars :D

  • 5
    Great Service and an amazing mod

    Posted by Adam Pierce on Jul 25th 2021

    So for the last few years I have avoided playing my Saturn out of a fear of damaging the disc's I have accumulated over the years. Luckily for me, the guys here at stoneagegamer not only had terraonions in stocks, but also offer a service to install it and give your saturn/dreamcast a nice cleaning and make it look brand new again. Shipping was quick, and the customer service was outstanding. Would recommend stoneagegamer to anyone looking into a service like this

  • 5
    The Upgrade I Needed

    Posted by James on Jul 9th 2021

    I had the GDEMU in my Dreamcast before picking up the MODE for about a year. I never got more than about half my games to work. With the MODE, which has actual instructions and support, I got all my games working within a day - the exact same ROMS mind you. That alone was worth the price to me. Fine installation from the Stone Age team as well. I have a heavily modded system already and it was no problem for them to work on this without disturbing any of the other work, which I really appreciated.

  • 5
    Simply amazing work

    Posted by Brad on Jul 2nd 2021

    Ive had my system back for about a week now, and it's been sensational. Install was clean, communication was great, and shipping was absurdly fast. They also packaged my shipment much better than I had originally done. I would not hesitate to send these fantastic folks anything else I needed installed

  • 5
    Great ODE

    Posted by Matthew Iong on May 22nd 2021

    Bought this ODE at the time due to lack of availability. Pricing is a bit fair/high however the engineering and with complete compatibility with the Sega Saturn Library made this a great purchase for me. Setup was pretty easy, and was able to get my Sega Saturn games playing quite quickly. The only thing I would recommend is getting a ODE mount, and a power board adapter if your Saturn requires the external power.

  • 5

    Posted by Aaron Jones on Apr 10th 2021

    I have done a lot of business with stoneagegamer over the past couple of months. But it all started with the TerraOnion and a modification of a Dreamcast. I had the device installed and they did a fantastic job. I love the fit and functionality and it was worth every penny. You can’t go wrong buying from the folks at Stone Age gamer. They do good work and they care about their customers.