What are you trying to find content or codes for?
If you’re determined to relive the dual-screen era, your time is better spent learning about custom firmware and flashcarts than chasing dubious QR codes on Pinterest. Game safely, respect copyright where you can, and enjoy the DS library the right way—on original hardware or quality emulation.
A QR code can store at most ~3KB of binary data (version 40, low error correction). A typical DS game ROM ranges from 8MB to 256MB. Thus, a single QR code cannot hold a full DS game. Multi-part QR codes are impractical for console-based scanning. nintendo ds games qr codes
Mobile emulation has made playing DS games on Android and iOS incredibly popular.
provide a library of DS titles that can be searched and downloaded directly to the device, often initiated by a setup QR code. Twilight Menu++ : QR codes are often used to install Twilight Menu++ What are you trying to find content or codes for
You scan the code. Instead of a game file, you are taken to a link shortener (like adf.ly or linkvertise). You must click through 3-4 pop-up ads.
, QR codes were the primary way to share custom characters with other players. eShop Demos : Nintendo often placed QR codes on their official support pages A QR code can store at most ~3KB
Downloading ROMs from the internet for games you do not own is copyright infringement, regardless of whether you used a QR code to find them.
The "long story" of 3DS QR codes took a dramatic turn when hackers discovered they could be used to bypass Nintendo's security. Developers famously found a vulnerability in a $5 puzzle game that allowed them to run custom code just by scanning a QR code with the console's camera