2019 •Sega Genesis
A ROM hack/mod for Sonic the Hedgehog which changes Sonic for Shadow the Hedgehog. Although a previous mod with the same purpose exists, this one adds...
GPi Case 2 by Retroflag, Vertical retro handheld, running Linux (RetroPie), powered by Broadcom BCM2711 (Raspberry Pi Compute Module 4), with a 3.0 inch display...
Marketplace rows use affiliate-friendly links where available. Average price stays based on the console database, not live per-store pricing.
| Store | Price |
|---|---|
|
Amazon
Imported from spreadsheet hyperlink
|
$80 (Pi CM4 not included) $90 (with Dock) |
|
AliExpress
AliExpress search results
|
$80 (Pi CM4 not included) $90 (with Dock) |
Affiliate disclosure and terms are linked in the footer.
Broad emulation range
GPi Case 2 lands in a crowded lane, which is exactly why the comparison with GPi Case 2W, PiBoy DMG, and GamePi43 matters so much.
GPi Case 2 is not trying to win every argument at once; its appeal lives in the balance between emulation comfort, day-to-day usability, and whether its price still feels sane.
Before the review gets opinionated, here is the clean spec picture. This table is the reality check that keeps the rest of the write-up grounded.
| Category | Details |
|---|---|
| Brand | Retroflag |
| Release | 2021 / 12 |
| Form factor | Vertical |
| Operating system | Linux (RetroPie) |
| Overall performance | ⭐️⭐️⭐️⭐️⭐️ |
| SoC | Broadcom BCM2711 (Raspberry Pi Compute Module 4) |
| CPU | Cortex-A72, 4 Cores, and 1.5 GHz |
| GPU | Broadcom VideoCore VI and 500 MHz |
| RAM | 1, 2, 4 or 8 GB (Pi dependent) |
| Display | 3.0 inch, IPS, and 60 Hz |
| Resolution | 640 x 480, 4:3, and 266.67 PPI |
| Battery and cooling | 4000 mAh |
| Storage and I/O | Internal MicroSD, USB-C, USB-C video out (via dock), and 3.5mm Headphone |
| Price | $80 (Pi CM4 not included) $90 (with Dock) |
If this review pulls you in, the fastest next rabbit hole is GPi Case 2W and PiBoy DMG, because those are the products most likely to clarify whether GPi Case 2 is your real match or just your current curiosity.
GPi Case 2 is currently tracked around $80 (Pi CM4 not included) $90 (with Dock) and lands in the $075 - $100 pricing band. Price does not just change whether a device feels affordable. It changes what kinds of flaws buyers are willing to forgive.
The spreadsheet points shoppers toward Amazon for availability. That matters because storefront quality, shipping confidence, and after-sales expectations often shape the emotional experience of a purchase before the box even arrives.
Every handheld makes tradeoffs somewhere, even when the spreadsheet leaves them unstated. The smartest shortlist is usually the one that sees the flaw clearly and decides it is either acceptable or disqualifying before the credit card comes out.
The heart of the machine is the Broadcom BCM2711 (Raspberry Pi Compute Module 4). CPU duties are handled by Cortex-A72. Graphics are handled by Broadcom VideoCore VI. Memory is listed at 1, 2, 4 or 8 GB (Pi dependent). The sheet rates the overall performance at ⭐️⭐️⭐️⭐️⭐️, or roughly 5 on the normalized scale.
The CPU side is described with 4 Cores, 4 Threads, and 1.5 GHz, which is more useful than brand names alone because it hints at how much headroom the handheld should have before emulator tuning gets annoying. On the graphics side, 500 MHz and ARM helps sketch the ceiling for heavier systems, upscale experiments, and shader curiosity.
GPi Case 2 looks strongest with Game Boy (A), NES (A), Sega Genesis (A), Game Boy Advance (A), Super Nintendo (A), and PlayStation 1 (A), which gives the review something more tangible than a vague "good for retro" verdict. The listed emulation limit, N64, PSP & Dreamcast mostly playable (not all full speed), is the kind of line buyers should actually respect because it tells you where the romance ends and the compromise begins.
The middle tier of compatibility, including Sega Saturn (C), is where the buyer needs some honesty. These are usually the systems that separate a casual dabbler from a user who is happy tweaking emulator settings, testing cores, or accepting the occasional rough edge.
GPi Case 2 pairs the hardware with 3.0 inch, IPS, 60 Hz, 640 x 480, 4:3, and 266.67 PPI. That is the kind of detail stack retro buyers should linger on, because a handheld can be technically capable and still feel wrong if the aspect ratio, sharpness, and scaling story are off. The screen protection is listed as Tempered Glass, a small clue that often hints at how polished or rough the front face might feel in daily use.
The controls are described with Cross Upper placement, 4 Buttons, L1, R1, and Hotkey, Turbo, Sleep. That matters more than many spec sheets admit, because the difference between a fun handheld and a fatiguing one often shows up in the D-pad, shoulder shape, and how naturally the thumbs settle into place. This is where a retro handheld stops being abstract and starts becoming a piece of physical furniture for your hands.
The 4:3 aspect ratio adds another layer to the story. The right screen is not always the fanciest one. Sometimes it is the one that makes your core library look natural instead of merely possible.
| Console | Angle | Price | Performance | Why Click Through |
|---|---|---|---|---|
GPi Case 2W Retroflag | Brand Neighbor | 80.0 | ⭐️⭐️⭐️⭐️ | same operating system, vertical layout, tracked around 80.0. |
PiBoy DMG Experimental Pi | Closest Match | $90 (Base kit) $120 (Full kit) $180 (Assembled) | ⭐️⭐️⭐️⭐️⭐️ | same operating system, vertical layout, tracked around $90 (Base kit) $120 (Full kit) $180 (Assembled). |
GamePi43 WaveShare | Closest Match | $80 + Pi + Battery (DIY) $115 + Battery (Pre-built) | ⭐️⭐️⭐️⭐️ | same operating system, vertical layout, tracked around $80 + Pi + Battery (DIY) $115 + Battery (Pre-built). |
TRIMUI Smart Brick TRIMUI | Closest Match | $80 (Plastic) $95 (Metal) | ⭐️⭐️⭐️⭐️⭐️¼ | vertical layout, tracked around $80 (Plastic) $95 (Metal), rated ⭐️⭐️⭐️⭐️⭐️¼. |
GPi Case 2 becomes much easier to judge once it is forced into the same room as GPi Case 2W, PiBoy DMG, and GamePi43. This is where a vague impression turns into a real buying decision, because each nearby rival throws a different kind of pressure on the table.
GPi Case 2 versus GPi Case 2W is interesting because brand neighbor is the obvious angle. GPi Case 2W sits close enough to GPi Case 2 to make the comparison meaningful, but different enough to sharpen the buying decision. From another angle, gPi Case 2W is tracked around 80.0. Its overall rating is ⭐️⭐️⭐️⭐️. That said, gPi Case 2 versus PiBoy DMG is interesting because closest match is the obvious angle. PiBoy DMG sits close enough to GPi Case 2 to make the comparison meaningful, but different enough to sharpen the buying decision. PiBoy DMG is tracked around $90 (Base kit) $120 (Full kit) $180 (Assembled). From another angle, its overall rating is ⭐️⭐️⭐️⭐️⭐️. That said, gPi Case 2 versus GamePi43 is interesting because closest match is the obvious angle. Compared with GPi Case 2, GamePi43 makes the more obvious play for readers who care about closest match. GamePi43 is tracked around $80 + Pi + Battery (DIY) $115 + Battery (Pre-built).
The real benefit of this comparison set is not that it declares a single winner. It reveals which compromise profile feels least annoying over time.
GPi Case 2 is best framed as a machine for buyers who want a serious all-rounder with room for tougher systems. This category rewards shoppers who know what kind of sessions they actually play, because not every strong device is strong in the same way.
The vertical shape matters here because it changes comfort, portability, and the kind of nostalgia the device leans into. The fact that it runs Linux (RetroPie) also affects what kind of setup work, app ecosystem, and tinkering ceiling buyers should expect.
The release timing listed as 2021 / 12 helps place it in context. In this market, timing changes expectations: a device that felt expensive at launch can look sharply judged six months later, while a newer device may need to justify a premium.
GPi Case 2 is described with battery: 4000 mAh. Those are not background details; they shape noise, comfort, endurance, and whether the device feels eager to be used or mildly exhausting to keep fed. Audio is covered by Single Mono Front facing and 3.5mm Headphone, which matters for sofa play, travel, and late-night sessions when speakers and headphone output can quietly make or break the experience.
Physically, the device is outlined by 135 mm x 81 mm x 32 mm, 224.0, Plastic, and DMG Gray. This is where you start picturing whether it is truly pocketable, only jacket-safe, or clearly a bag companion. A handheld is only as portable as the friction it introduces. Too heavy, too hot, too awkward, and even strong specs start feeling theoretical.
The practical I/O story includes Internal MicroSD, WiFi, Bluetooth (Pi dependent), USB-C, and USB-C video out (via dock). These details matter because many retro buyers are also collectors, tinkerers, dock-and-TV players, or people with large libraries that need sensible storage and transfer options.
GPi Case 2 leaves the strongest impression when you frame it as a recommendation for buyers who want a serious all-rounder with room for tougher systems. That framing keeps the review honest and stops the verdict from sliding into generic praise.
Broad emulation range is not just a catchy label here. It is the cleanest shorthand for why this device deserves attention. The compatibility profile around Game Boy (A), NES (A), Sega Genesis (A), and Game Boy Advance (A) gives it a concrete identity.
If the device sparks your interest, the smartest next click is usually GPi Case 2W, followed by PiBoy DMG, because that is where the shape of the market around it comes into focus. That is what a good review should do: not close the conversation, but sharpen the next choice.
Games shown here match systems this handheld can run at a B grade or better.
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