A 5-year-old boy, terrified by the character known as "Momo," dialed 911 to report the bug-eyed ghoul. Momo, the figure at the center of the "Momo Challenge," has been popping up on social media in recent days after multiple police departments posted warnings about the dangerous social media game, which apparently urges kids to kill themselves. "Hello, I'm scared," little Giovanni Pedroza of Albuquerque, New Mexico, was recorded telling the dispatcher. "Are you going to find her?" he asked.