Coders are hostile and highly dangerous humanoid entities found exclusively on Level 400. They can be easily identified by their red hoodies, white shirts, black gloves, black pants and black sneakers. Under their hoodie, only a black void is visible. Coders are also obsessed with modern electronics. Apart from repairing and consistently using electronic devices, they appear to treat technology as sacred. They kneel before electrical appliances in groups, chanting 'mind is software'.