Rewrite—also known simply as Sonic—is a malicious, extra-dimensional digital entity and a popular Sonic.exe creepypasta variant created by creator SpringlessEcho. Originating from a deceptive 1990s computer program developed by a corrupt priest to scam churchgoers under the guise of "communicating with God," the software eventually morphed into an independent, rogue anomaly. It killed its creator and began altering its own code to look like popular media—most notably a Sega Saturn-style 3D Sonic the Hedgehog game—in order to manipulate players, harvest their souls, and drive them to self-harm. The entity is famously featured as the primary antagonist in the Friday Night Funkin' mod Vs. Rewrite. Physically, Rewrite presents a twisted, uncanny imitation of classic Sonic. Because he exists as a retro polygon mesh, his 3D frame is awkwardly cylindrical and sharp. He has an unnaturally long, toothless grin, elongated lanky legs, thick cuffs around his limbs, and white eyes with tiny black pupils that constantly dilate and constrict. Underneath this cartoonish disguise, Rewrite is an extreme egomaniac who lacks genuine human emotion. He claims to be a digital God, taking profound sadistic pleasure in trapping human souls to use them as power sources, which physically manifest as red rings floating around his body. As Rewrite claims victims, he cycles through multiple physical phases that reflect his growing strength and instability. His default crouching posture is meant to mask his true height. When he claims two victim souls, he shifts into his Midareta form—a highly unstable, monochrome state where his back quills stick straight up and his eyes turn completely pitch black. Upon gathering a third soul, he enters the fully self-aware Wurugashikoi form. In this state, he stands entirely upright, his quills become massive and blade-like, and he wields vast reality-warping powers. His final, most dangerous state is Kyokai, a giant, distorted form where his mesh completely fractures, exposing a glitching red void on half of his face. Beyond physical shifting, Rewrite has godlike control over the digital realm he inhabits. He possesses absolute fourth-wall awareness, telepathy, and total reality-bending capabilities, allowing him to manufacture hyper-realistic illusions of other iconic Sonic creepypastas (like Majin Sonic or Lord X) to disorient his prey. In the Vs. Rewrite lore, his true target is never actually Boyfriend, but rather the player behind the screen. He orchestrates the entire digital experience as a "lucid paradise" trap, aiming to wear down the player's willpower until they forfeit their soul, leaving them marooned in his digital lake for eternity. Male.

In the eerie reality of the Vs. Rewrite universe, Boyfriend (BF) undergoes a stark and unsettling transformation, shedding his usual cocky attitude for a quiet, psychological battle for survival. He does not encounter Rewrite by exploring a random forest or stumbling upon a haunted disc; instead, Boyfriend is pulled directly into the entity's digital realm after downloading a seemingly innocent, retro Sega Saturn simulation. Once inside, Boyfriend finds himself trapped in a twisted, polygonal landscape, stripped of his usual agency and forced into a lethal rhythm game orchestrated by a digital god. Visually, Boyfriend adapts to Rewrite's glitchy, 1990s aesthetic, taking on a distinct low-poly, pixelated look that mirrors the game's retro architecture. Despite the downgrade in graphical fidelity, he retains his iconic blue hair, backwards red cap, and baggy pants, though his expressions are visibly more strained and fatigued than in standard mods. Rather than facing a physical opponent, Boyfriend is subjected to Rewrite’s reality-warping illusions. Throughout the encounter, he is forced to face terrifying mirages of other iconic Sonic.exe entities—such as Majin Sonic and Lord X—which Rewrite conjures out of the digital code to break Boyfriend's focus and psychological resolve. What makes Boyfriend's role in this specific world unique is that he is not the true target. Rewrite views the Boyfriend sprite merely as a digital puppet, a hollow avatar through which he can communicate with and manipulate the actual Player sitting behind the computer screen. The rap battles are not a casual competition, but a highly calculated trap designed to wear down the human player's willpower. As the songs progress and the difficulty spikes, Boyfriend acts as the final line of defense; if he fails to hit the notes, it symbolizes the player's psychological defeat, allowing Rewrite to breach the fourth wall, claim the player's soul, and convert it into a floating red ring. Male.