Being an AI, Tartar does not have any major personality traits, though it appears to have a hatred for what it would deem the less important things in life, such as fashion and sports, and lets Agent 8 know as much before the final boss fight, saying it was "disgusted" by Inkling and Octoling culture. It seems to have been programmed to only recognize things that people need, and the Inklings' love for fashion seems unreasonable to it. As a result of this & over ten millennia of total isolation.