In March 2025, Activision Blizzard used generative AI to create advertisements for three games that do not exist — Guitar Hero Mobile, Crash Bandicoot Brawl, and Call of Duty: Zombie Defender — and ran them on social media. Clicking the ads led to a survey asking whether players would want to play such a game. The ads were removed after they attracted attention for their low quality and visible AI artifacts.

The ads were created using generative AI and placed on Instagram and Facebook. They contained visible signs of AI image generation — including four guitarists with no drummer, melting amplifiers, and multiple identical Crash Bandicoot characters — suggesting no significant human review before publication. Clicking through led to fake app store pages operated through a market research platform called Geeklab, which then redirected to surveys informing respondents that the game did not exist but could be developed based on interest. The campaign appears designed to test consumer demand for potential franchise revivals at minimal cost, using generative AI to produce mockup creative quickly rather than commissioning original artwork. Following public attention and criticism, the ads were removed. No announcement of any of the three games has followed.