So, the official QR code is gone. Is the game lost? Not quite.
While the official "Spring Breeze" demo download is inaccessible, the 3DS homebrew community has stepped in to preserve the experience. For users who have modified their 3DS systems (a process known as "CFW" or Custom Firmware), the concept of QR codes has evolved.
Homebrew tools now allow users to scan QR codes to install games directly from their own backups. In this context, "updated QR codes" refers not to Nintendo's official servers, but to community-hosted repositories. This is currently the only way to "scan and play" Kirby Super Star Ultra on a 3DS, though it requires technical know-how and legally owning your own game files.
No. The movies are added to an empty slot. They do not overwrite progress, achievements, or your Clear! stamps.
How to scan:
Note: These codes are universal. They work on all regional versions of the game (USA, EUR, JPN).