Sentient artificial intelligence programs designed to help humans navigate the internet in the world of Mega Man Battle Network. Many of them are adaptations of characters from the main Mega Man series, typically with a ".EXE" appended to their names to distinguish them from their robot counterparts. When not navigating the net, Net Navis reside in "PErsonal Terminals" or "PETs" held by their human operators, which can "jack in" to electronic devices through wired or wireless methods.