Neo Pocket Flash Masta In Stock, WS Coming Soon

We now have 20 Neo Pocket Flash Masta units in stock and ready to ship. In the past, we have made these in larger batches, but we are also very busy with our Freeplay Zero/CM3 project (think Raspberry Pi in a GBA-style shell) lately. There isn’t really a lot to report about the NGPC flash carts other than I usually tell people to sign up for post notification emails, so when we have something in stock they will get notified.

Our other news here is that we now have all the parts in stock to make a new batch of WS Flash Masta USB cartridges. We have the parts to make 40+ of these carts, and we will be working on them this week. Even though we have the parts to build 40+ we may build/release these in smaller batches, because they do take a fair bit of effort to assemble, burn, test, etc. I don’t know when they will be ready, but I hope it will be soon.

If you want one of these WonderSwan cartridges, please sign up for post notification emails at We do not keep a waiting list, so this is our main way to get the word out when there are some ready for purchase.

WS Flash Masta In Stock Now

Christmas Batch Of WS Flash Masta Carts

We have a very limited supply of WS Flash Masta cartridges. I really thought we wouldn’t get any of these built until the new year. Andrew saw all the interest in WS carts thanks to your commenting on our recent posts, so he took it upon himself to solder up as many as he could.

The batch we were able to make is only 11 cartridges. I know that people have been waiting for these, but I honestly don’t know how long they will last.

Update: WOW, those sold out very quickly. I expected them to go through the weekend. Thanks for all the interest. This just shows that we need to make more again, soon.

So, here is our Christmas gift to you. Of course it’s not free like a proper present, but Andrew did go out of his way to build these this week. Merry Christmas!

We did actually bake these in our oven (a soldering reflow oven) like some how Christmas goodies get made.

As always, please read the full description of the product before you make a purchase.

P.S. I know that in our previous post “Tell Your Friends, 10% Off For The Holidays” we gave out a 10% off coupon code for the Neo Pocket Flash Masta. Unfortunately, we can’t extend that offer to the WS Flash Masta Cartridges, because this is such a small batch.

Tell Your Friends, 10% Off For The Holidays

Our “Cyber Week” promotion went well, and we have been getting into the holiday spirit lately, so we decided to run a holiday promotion for the rest of the year (through new years day). We currently have the Neo Pocket Flash Masta cartridges ready to ship.

This is a 10% off coupon that you can apply at checkout for ten percent off your Neo Pocket Flash Masta order.


I know that many of you have been asking about the WonderSwan carts lately. We are working on another small batch (10-15 cartridges) of WS Flash Masta carts, but they do take quite a bit more effort than the Neo Pocket Flash Masta carts take. I’m sorry to say that my guess is that we won’t have enough time to get them made before the new year, but there’s a chance.

In other news, our Freeplay Zero DIY Kits are currently in stock, and the circuit boards for our Freeplay CM3 DIY Kits are being shipped to us soon. That project is taking the vast majority of our time lately, because we have Kickstarter (and other presale) backers waiting for their rewards.

We really appreciate all of you that follow along here. We’d like to wish you a Merry Christmas and/or just a great holiday season.

Neo Pocket Flash Masta Cyber Week Sale

We just got some new stock of the Neo Pocket Flash Masta cartridges. We had wanted to do a Cyber Monday sale, but we had to wait until we had these additional cartridges. Well that just happened!

Now we can offer the celebratory sale. I know it’s already a bit late in the week, so we will run this 10% off coupon through the weekend. You can apply it at checkout for ten percent off your order.


Thank you all for following our project, and have a great holiday season. We really do appreciate you!

In Stock Again – Neo Pocket Flash Masta

We have just made a small batch of Neo Pocket Flash Masta cartridges. We will try to be keeping these in stock through the rest of the year, but (of course) that will depend on demand.

At the moment, we have 13 cartridges that we have assembled by hand. We have most of the parts to make another small batch or two, and we are also working on getting another larger batch manufactured/assembled for us.

I hope we can keep these in stock for a while.

The cartridge shells may be a different story. As you may know, we cut these from sacrificial game cartridges. They are getting more difficult/expensive to obtain. At least we have the 3D Printable Neo Pocket Flash Masta shell available out there, now.

Neo Pocket Carts In Stock (Limited Supply)

We have been getting emails from plenty of people lately that are wondering when we will have Neo Pocket Flash Masta carts back in stock. Well, we don’t have a full batch in stock, but we did spend some time testing & refurbishing some cartridges that didn’t pass our prior inspections. There is a very limited supply of these refurbished Neo Pocket Flash Masta cartridges, but I wanted to post about it so everyone that may be waiting for a cartridge would get notified.

UPDATE: These have sold quite quickly. Please sign up for email updates if you want to get notified when we post about the next batch.

Otherwise, we have been rather swamped with our Freeplay Zero and Freeplay CM3 production. That is going rather well, but it’s time consuming. If you want to keep up with that, please sign up for our Freeplaytech email Newsletter.

Kickstarter Launch & Neo Pocket Flash Masta NGPC 3D Printable Cart Shell

Freeplaytech Kickstarter

Freeplaytech Kickstarter

If you didn’t notice, we have launched a new product line called Freeplaytech. Under that, we are using Kickstarter to produce two products: Freeplay Zero and Freeplay CM3.

Head Over To The Kickstarter Campaign

The Freeplay Zero (which was previously called Game Pie Advance) is a DIY kit that we are producing to allow you to pair with your own Raspberry Pi Zero (or Zero W) and make a customized handheld gaming console.

The Freeplay CM3 is a DIY kit that comes with the processing power of the Raspberry Pi 3 built in allowing you to build a customized handheld gaming console.

NGPC Neo Pocket Flash Masta 3D Printable Cartridge Shell

NGPC Neo Pocket Flash Masta 3D Printable Cartridge Shell

We have also had some work done on a NGPC cartridge shell that you can 3D print. I don’t know if this is the final design or not. I had a purple version printed, and it needed a couple minor tweaks to the lid. Since implementing those tweaks, I have not yet reprinted the lid. I thought some of you guys might want to try it out.

If you do try it, let us know in the comments. If you remix this, please comment here and post your remix.

For example, one thing you may want to edit is the “lip” of the lid where you grab on to pull the cartridge out. That makes printing a bit more difficult, because you need to support the print. You may want to flatten that out and just add a slit for your fingernails to grab onto. A flat lid would be easier to print directly on the print table.

NGPC Neo Geo Pocket Flash Masta 3D Printable Cartridge Shell via Thingiverse

Flash Masta Now Open Source Software

The Flash Masta Desktop application is now open source. This is the desktop application that is used to interface with the Neo Pocket Flash Masta and WS Flash Masta cartridges via USB.

I just feel like I don’t have the time to properly maintain this code any longer, so it should finally be released to the community. It should easily compile under Windows, macOS, and Linux. This is the source code to the application found on our downloads page, and it has been released under the GNU General Public License v3.0.

To celebrate this momentous occasion, we are offering 10% off of Neo Pocket Flash Masta cartridge orders for the next 10 days. Just use coupon code open-source-10 (expired) to get your cheap flash cartridge. As always, we would love it if you would share this news on Twitter, FB, forums, etc. Let us know if you do. The coupon should be good through the end of March.

You can find the source code here, on GitHub.

Price Cut – Neo Pocket Flash Masta Now Under $50

It’s a big day for us here at the Flash Masta project. You may not have realized it, but, up till now, we have been soldering all the Flash Masta products by hand. We have experimented with many different ways to apply solder or place parts, but it’s basically been a lot of manual labor to produce each cartridge.

Today we received our first batch of fully assembled Neo Pocket Flash Masta circuit boards, and we are pretty excited about the result. Not only will it take us less time to make these cartridges, but we can now offer them to you for a cheaper price. It’s a win-win, and I’m hoping that you guys are excited about it, too.

The Neo Pocket Flash Masta 32M flash cart can now be purchased for under $50. We are hoping that you could help spread the word a bit, too. If you wouldn’t mind, please post this news on Twitter, Facebook, reddit, forums, etc, because we are hoping that this will bring new developers and players to the NGPC platform. I always feel a bit odd self promoting this stuff, so help is always appreciated! I tried to make it easy by making the links (Twitter & Facebook) pre-populate some information for you.

I do want to be clear that there is a small catch to that $50 price I mentioned. Because it is getting more and more difficult to find the plastic shells to use for these flash carts, we are changing the way we sell the Neo Pocket Flash Masta. In the past, the circuit board that we produce came bundled with a USB cable and pre-installed inside of a plastic Neo Geo Pocket game cartridge shell. Now, we are offering these “extras” as options.

If you already have a plastic game shell that you could use, you can purchase the Neo Pocket Flash Masta without the shell for under $50. If you don’t have an extra game cart/shell (but you still want to cut and drill your own), you can purchase it with an uncut shell (a sacrificial game). If you want to just plug-and-play without doing any extra work yourself, you can buy the Neo Pocket Flash Masta circuit board already installed inside of a pre-cut shell.

So happy with how my #GamePieAdvance build came out! – Zach, AZ, USA

You can see all the options here:

In other news, we are again taking preorders for the Game Pie Advance kits. This v2.1 kit has some minor changes from the v2.0 kit that are mainly to do with the placement of parts and other issues that make it easier for us to produce. If you’re interested in having a handheld Raspberry Pi, check out our product page for the GPA at I you want to see our showcase of customers’ completed builds, that’s here: