P.I.X.A.L. (Primary Interactive X-ternal Assistant Life-form), known as Pix by her friends, is a female Nindroid created by Cyrus Borg to serve as his assistant, the current Samurai X, a member of the ninja, and Zane's girlfriend.
When Cyrus Borg invited the ninja to discuss an important matter, P.I.X.A.L. gave a tour of the building to Nya, Wu, and their students. However, this tour was cut short when P.I.X.A.L. was put under the control of the Overlord. While under his control, she designed and produced the Nindroid Army using blueprints of Zane. She would remain under his control until Zane freed her using a Techno Blade. During the Nindroid crisis, P.I.X.A.L. assisted in turning the power to Ninjago City off. They are successful, but this deactivated P.I.X.A.L. in the process. Zane gave her half of his power source, reactivating her and the knowledge of how to fight properly. P.I.X.A.L. would continue to help the ninja in battling against Nindroids, the Overlord, and even Pythor, until Zane sacrificed himself to defeat the Overlord and save Ninjago.
During Zane's memorial, P.I.X.A.L. remained in Borg Tower mourning his loss, until Zane communicated to her from within the Digiverse. Together, they built Zane a new titanium body, but were shortly captured by Ronin and sold to Chen soon after. P.I.X.A.L.'s body would be scrapped, while her consciousness would be dumped on a neural drive. She would remain there until Zane put her neural drive in his processor, essentially putting P.I.X.A.L. in his head. From there, P.I.X.A.L. would assist Zane and the ninja to the best of her ability in stopping the Anacondrai Cultists from taking over Ninjago.
During the attack of the Vermillion, P.I.X.A.L. left Zane's head and built a new physical body. She took on the alias of Samurai X so she could adopt a more physical role in the ninja's missions. P.I.X.A.L. then assisted the ninja in dealing with the Time Twins.
Eventually, her identity as the new Samurai X became known to the ninja, which was met with Zane's approval. Due to this, she helped battle the Sons of Garmadon with the ninja in a more prominent role. Later, she joined the Resistance against Garmadon's oppressive hold of Ninjago City.
While the other ninja were in Prime Empire, she and Zane embarked on a search for Milton Dyer. They succeed, but not before Zane was used as a power source to fuel the gateway between Prime Empire and Ninjago. P.I.X.A.L. would then assist Jay in stopping Unagami, leading to the eventual release and revival of those trapped in the game.
A year after the Great Flood, she and the rest of the resistance would band together to fulfill the final prophecy of Quanish the Elder and stop the Overlord once more.
At some point, following the Merge, P.I.X.A.L. was placed on standby in a stasis pod. After Thunderfang was defeated, P.I.X.A.L. and Zane rode off together to explore other monasteries and make and share new experiences.