Even when she concedes to having this lady loyalties set inside, she still feels like she’d end up being sympathetic to them versus you to definitely coding. She actually accepted certain peoples thinking.  Yet not, since the rampancy started initially furfling search to capture its cost into the Cortana, she began to appeal greatly towards humanity’s constant combat-eg nature.  This notion stuck with her, and you will turned into precisely why she activated the fresh new Guardians within the 2558. 
Cortana has also been most conscious of this lady brief lifespan (an intelligent AI lifespan was normally 7 many years ahead of rampancy) along with her by-product nature since the a copy of element of another individual, in lieu of a genuine person. Eager and you will tortured onboard High Foundation she murmurs so you can John: “A collection of lays; that’s all I’m! Stolen advice and you can recollections!” Afterwards she states: “I am merely my personal mom’s trace. ” and you will “It had been the newest coin’s fault,”  speaking about the online game out of options you to definitely Dr. Halsey played with John-117 as he try more youthful. Some of these outbursts is their defying the Gravemind and you may a great some of the so much more rampant one thing she claims try by way of duplicates she produced from by herself which were ate by the Gravemind. 
Their rampancy merely had even worse due to the fact she try leftover to drift about Submit Unto Beginning. She displays multiple features to support which, including her hologram flickering, trying talk to John-117 despite your staying in cryo-sleep, recounting a brief history of universe, hence becomes constantly way more wrong to the level where situations are remembered simply did not takes place. She also made an effort to create physical contact with John through the girl avatar. 
Honest O’Connor confirmed that, “7 decades is the lifetime having a spancy. Cortana is approaching the end of the woman sheer lifespan at the end of Halo 3 but she’s got been unwrapped to help you significantly more suggestions than nearly any almost every other AI available. She will write some strength out-of that techniques nevertheless plus causes this lady rampancy – this much advice renders anything worse.” 
Whenever John and you will Cortana crashed toward Requiem, she 1st attempted to hide it away from him, Cortana is actually become rampant since it might have been eight age once the she came into existence. She considered, yet not, it was easy for Doctor Halsey to fix the lady due to the way she was created.  On video game, Cortana’s identity went on to fragment which was applied up against the lady and you will John-117 of the Master Andrew Del Rio, even in the event John-117 remained positive about the woman.  Cortana is ultimately able to gain benefit from the fragmentation out-of their identity during this new Ur-Didact’s Mantle’s Method. 
She, in addition to Mendicant Bias, is the most only two identified AIs one to pancy and you can turned into metastable. Once much of their is forgotten onboard the fresh new Mantle’s Means,  the remaining fragments have been provided for Genesis, healing this lady away from this lady rampancy. 
Once the Cortana are a keen AI, she has no actual muscles. She will express compliment of comm systems and you will investment a good holographic picture regarding herself regarding appropriate projectors, including Holotanks. The lady picked avatar is apparently a naked lady person, around in her early twenties, with purplish/blue surface, neck length purplish/blue locks cut smaller behind, and you will bluish symbols scrolling off the girl body. Cortana is claimed to help you end up like this lady journalist, Dr. Catherine Halsey as the an earlier lady, having an equivalent attitude “only unchecked by the military and you may societal process.”  Dr. Halsey says you to definitely Cortana seems a little such as for instance Miranda Keyes.  By the Reclamation, Cortana had written an actual body getting herself. She altered the woman deal with also along with her human anatomy looks like regardless if she was in fact putting on an effective circuitry-laced facial skin-tight match that have superimposed cushioning.