Hmm.. I've been trying to decode the QR Code for the extra levels (using the one from Nintendo Life), but no luck so far. Has anyone else tried? Anyone interested? If you look at the QR code, you can see some "miniature versions" of the centering squares (a dot with a white border with a black border). Reading the QR code with a conventional scanner reveals tons of random unreadable characters. Same result if I remove the miniature versions of the "centering squares".