Counterfeit Nintendo cartridges have never been easier to produce — or harder to tell apart from the real thing. Before you spend good money on a vintage game, run it through this checklist.
1. Look at the label — then look again
Authentic Nintendo cartridges have sharp, evenly saturated printing. Check for blurry text, off-colour logos, or a glossy finish where the original was matte. On Game Boy and Game Boy Color games, the official Nintendo Game Boy / Game Boy Color logos are crisp and the label grain is uniform. Reproduction labels are frequently slightly misaligned or use a different paper sheen.
2. The back of the cartridge tells the truth
On the back of most genuine Game Boy cartridges you will find the words NINTENDO GAME BOY (or similar) embossed into the plastic — not printed. Run your finger over it. A fake often has a plain back or printed text. Many authentic carts also carry a two-digit moulding code (e.g. 00, 22) pressed into the plastic near the label.
3. Check the plastic colour and texture
Original Game Boy Color and GBA shells have a specific translucent depth and even colour. Fakes are often a slightly wrong shade, feel cheaper, and have rougher mould seams. Game Boy (DMG) grey carts should be a warm, consistent grey; reproductions can look too dark or too light.
4. Open it up (the definitive test)
Inside, a genuine Nintendo PCB has the Nintendo imprint, clean solder, and a proper chip layout. Nintendo used a specific set of board shapes (DMG, MGB, CGB, AGB) and ROM chips with the manufacturer's markings (Nintendo, Sharp, MX, etc.). Counterfeits often use a "blob" chip (black epoxy dot), no Nintendo imprint, or an obviously hand-soldered board. Many fakes also omit the battery holder on games that legitimately need a save battery, or wire the battery differently.
5. The "Nintendo" logo test on the PCB
Genuine boards say Nintendo somewhere — on the solder mask or silkscreen. If you open a cartridge labelled Pokémon Yellow and the board has no Nintendo marking, it is not an original.
6. Price is a red flag — not a guarantee
| Signal | What it usually means |
|---|---|
| "New" sealed copy at half the market price | Almost certainly a reproduction |
| Cartridge only, suspiciously cheap | Verify before buying |
| Plays but save game resets | Could be fake OR dead battery — open it up |
| Label in flawless condition on a 30-year-old game | Possible reprint label — check the back |
Where to start your collection
We test and photograph every cartridge we list, and we describe condition honestly — original label, working save, tested on original hardware. Browse our retro games & handhelds collection, or message us on WhatsApp if you are looking for a specific title.
