The query regarding a " Mario Kart DS QR code" likely refers to two distinct modern contexts: the recent revival of its online features through fan-made servers or its spiritual connection to modern Nintendo titles that use QR technology for pairing. The Nostalgia and Tech of Mario Kart DS Released originally in 2005, Mario Kart DS (MKDS) was a pioneer in handheld online gaming, being the first title to utilize the Nintendo Wi-Fi Connection . However, native QR code support was not a feature of the original 2005 hardware or software, as the Nintendo DS lacked a built-in camera until the DSi iteration. Mario Wiki Modern "QR Code" Contexts for MKDS If you are looking for QR codes related to Mario Kart DS today, they typically fall into these categories: Fan-Server Connections
Could you clarify which one you meant?