The hook. On February 11, 2025, Duolingo announced that Duo, its own mascot, was dead. Cause of death: hit by a Cybertruck. The brand mourned him across TikTok and X in full lo-fi social style, then set the terms of his return: users had to collectively earn 50 billion XP in the app to bring him back. They did, and Duolingo posted the resurrection video.
Why it works. This was not a one-off stunt. Duolingo spent years letting the internet turn Duo into a lovable menace who threatens you about your streak, and the death announcement cashed in all of that accumulated lore at once. A mascot with a story arc can die; a logo cannot. Other brands joined the mourning, creators made their own eulogies, and every reply became free distribution. The sharpest move is the resurrection mechanic: the campaign's resolution was not likes or shares, it was 50 billion XP, which means the emotional payoff required people to actually use the product. Attention converted straight into lessons completed.
Steal this. Give your mascot a life that can change, not just a posting schedule. When you run a stunt, tie the ending to the action you want measured in product usage, not impressions. And build the lore for years before you spend it in a week.
Campaign by Duolingo. Documented on Wikipedia's Duolingo page.