A machine Digimon that protects computer network firewalls. Originally this Digimon would repel illegal network firewall entry together with "Net Keeper" Giromon. But a vicious hacker infected it with a computer virus for that impregnable defensive ability and used it to guard himself against a do gooder vaccine type group. Guardromon only has "defend" programmed into it, so it'll defend against invaders regardless of who they are. Special move Destruction Grenade pursues intruders to the ends of the earth.