Mario Party DS antipiracy

Starting on October 13, 2020, Joey Perleoni uploaded a series of faked YouTube videos claiming to show piracy detection in Mario Party DS. They are heavily associated with mockup error screens and the phrase "Piracy is no party!" As the videos became popular, fans fabricated antipiracy measures for other games.

Though many viewers seemed to take the initial Mario Party DS videos as legitimate, the game's files show no evidence of the alleged antipiracy content. Additionally, the videos became increasingly elaborate. The series finale is a black comedy short where an original party-host character, inspired by MC Ballyhoo, escapes into the real world to hunt down the owner of the pirated game.

The reception to the fake videos may have contributed to misinformation on antipiracy measures. The Mario Party DS article on The Cutting Room Floor, a wiki that documents cut and unused videogame content, was protected due to an influx of edits treating the hoax as fact.