The "Momo Challenge" is an internet phenomenon that emerged in 2018, featuring a disturbing image of a character named Momo, which is based on a sculpture by artist Keisuke Aiso. The challenge allegedly encourages children and teenagers to engage in harmful activities, including self-harm and suicide, through messages sent via social media platforms and messaging apps. Despite widespread media coverage and parental concern, many experts believe that the Momo Challenge is largely a hoax or urban legend. Reports suggest that the actual number of incidents linked to the challenge is minimal, and it may have been exaggerated to raise awareness about online safety and the potential dangers of the internet.