A thousand drones gathered in Shanghai's skyline to create a scannable QR code this past weekend. Aside from the aesthetic appeal, the QR code was designed as part of a marketing campaign for the anniversary of the Japanese role-playing video game 'Princess Connect! Re: Dive'.
The creators over at Cygames company amassed 1,500 drones in the sky to create various characters throughout the night in QR code format.
The displayed QR codes directed passerby toa link to content about the game, and a link to download the game.