Super Mario Maker (Now working QR code that is .cia) : r/3dsqrcodes
3DS CIA QR Codes : Free Download, Borrow, and Streaming : Internet Archive
3ds-cia-qr-code directory listing
QR Web Installer 3DS - GameBrew
Doki Doki Literature Club Cia (Unofficial Port) : r/3dsqrcodes
Releases · Conjure-04/3DS-CIA-Direct-Links
Persona Q Cia QR Code : r/3dspiracy
If you like JoJo's Bizarre Adventure, specifically part 3, and you have a New Nintendo 3DS, this will be useful for you. If you don't have a modded 3DS, you'll need to
Puyo Puyo Tetris English Patch CIA QR Code : r/3dspiracy