episode 4 of season 3 showed her mask changing on screen in an instant. She has transfinite power reserves, meaning that she has near limitless stores of energy to draw from, and as such, is quite powerful herself. Her powers include energy beams and fireballs, altering gravity (once causing Bob to stop and hover in midair) and being able to fly, shrugging off severe damage and controlling nulls (sprites downgraded to slug-like status for losing to the User in a game). She also has the power to open a portal to the net or web in her "looking glass", and has also been seen taking control of system programs like the system paint program. It is suggested that her powers are near infinite, but because of her madness she is unable to use them for anything constructive. Her vast collection of masks serve to show her facial expression, thereby giving her a harlequin-like appearance. The expressions shown in these masks can range from happy, sad, scheming, and even homicidal rage. These masks also hold her power in check. When removed (as in the episode "Painted Windows"), her power escapes and continues to do damage to her environment, and she will overload and be destroyed if the mask is not replaced. She is a benign virus, meaning she does not infect other entities. Instead, her primary motive is to simply cause random chaos for fun (and also to kill Megabyte, who kept trying to kill her, likely due to simple sibling rivalry). Due to her power and insanity, her fun nearly always led to Mainframe crashing. She even once nearly caused it unwittingly, when a Web Creature emerged from her mirror and possessed her. All of the nulls sensed this danger and covered her completely. The giant "Nullzilla" monster went on a rampage, as (according to Dot) the possessed-Hexadecimal was trying to escape. In Web World Wars, Hexadecimal was charged with powering the Hardware that closed the web portal. Despite her interest in Bob, she knew of Megabyte's impending betrayal and even helped launch him into the Web. After closing the portal, she aimed the Hardware at the Principal Office. Megabyte merely saw this as a threat to force the Mainframers compliance to his whims, but she wanted to destroy the Core – not caring that that would destroy the entire System, including herself. Luckily, a Game Cube landed on top