Expunged
Expunged is an antagonistic 3D Entity and the driving force behind major events in the storyline. It appears bearing different forms across the secret songs Cheating, Unfairness, and Exploitation.
Appearance
Expunged is a jarringly 3D character with an undefined appearance and identity, often stealing parts of itself from the files. She takes on three distinct appearances, one for each song she features in. Each form is constructed entirely of primitive 3D shapes with an expressive 2D plane for a face.
In Cheating, they are shown to resemble a 3D variation of Bambi, wearing the same outfit shown in Splitathon: a round green hat, red shirt, and blue pants. Their face is mostly neutral in expression, eyes colored with white irises and black pupils that are never shown to blink. Various poses show a smile lacking any teeth with a white tongue. He completely lacks arms in this form.
In Unfairness, while still resembling Bambi, it strays further from the source. Their entire outfit becomes a crimson red, a point juts out from the top of their black rimmed hat. This form has hands (unlike the previous one) covered by black mittens. She has a strikingly manic expression, a wide smile exposing sharp teeth and unblinking eyes with white pupils. The same white tongue can be seen briefly in a few frames.
In Exploitation, the body morphs into a slimmer and taller shape much closer resembling Dave. Four limbs are formed from two black cone shapes, hands and feet made of simple red spheres and capsules, and a red witch's hat sits on his head. Their skin is now an off-black color, a single reptilian eye is printed directly onto the right of its face with two thin black 2D eyebrows. Their mouth is a 2D plane separate from the body, lacking a tongue and lined with triangular teeth. She retains the same manic smile through each pose.
Relationships
Expunged has an antagonistic relationship with Dave, her unwitting creator. In the terminal command "power", she outright states that she hates him for throwing away the power he could've had (interestingly using they/them to refer to Dave). This "heap of unwanted power" is what created Expunged. She bears additional resentment against him for refusing to create Blade, a hypothetical entity that would've resulted from using the P.R.A.E.M. on Tristan[1], though it is uncertain why Expunged wanted Blade to exist. Other commands consistently describe her as a reflection of Dave, one as "wrong" (stop) and another as "broken" (birthday). Similarly in the BIRTHDAY document, she is described as "[looking] almost like [Tristan's] dad but it was all wrong".[2] These suggest Expunged's appearance is a warped reflection of Dave's, though it may also be implying that Expunged's personality is reflecting Dave as well. This interpretation has tentative support in Insane Dave, a hypothetical and manic-looking version of Dave that never used the P.R.A.E.M. on himself, going "down the wrong path" as a result.[3] This could suggest that Dave's potential for malice and power-hungriness was removed alongside his power with the P.R.A.E.M..