demogorgon is a hidden feature in Powerline.io. When used as a name, the player's powerline's color is black, an exclusive color (however, the food they drop when they die is still a random color). The name must be lowercase and spelled correctly for it to work. The feature is an Easter egg, referencing the Demogorgon, a creature from the TV series Stranger Things. It is the only known Easter egg in Powerline.io so far.