END.smc

END.smc (real name Jennifer Mays) is an adult female living within a cartridge of Super Mario World. She was created by Twitter user Plasma3031 in early March 2022.

Biography
Born in 1971 to Derek and Ann Mays, Jennifer was a bright-eyed, intellectual girl who proved extraordinary in her studies and pursuit of her passions. During high school, she met and fell in love with a boy her age named Peter, planning to move in with and marry him after college.

She was in her third year of college in 1992 when she was hit and killed by a drunk driver who swerved off the road and onto the sidewalk. In his immense grief and anger at the death of his girlfriend, Peter's rational judgment was impaired, and he attempted to bring Jennifer back by covertly performing a dangerous ritual in his bedroom, using a cartridge of Super Mario World as the focus of the ritual. The ritual was successful, but Jennifer was brought back to life not as a flesh and blood human walking the earth but as an entity of data living within the cartridge Peter had used. The data of Jennifer latched onto the only suitable vessel it could find within the game, Princess Peach, distorting her appearance and color scheme in the process. Thus, Jennifer Mays became END.smc, the lonely guardian of Super Mario World.

Within the game, Jennifer sees everything around her as though it were real and in a 3D space, including the screen the player looks into the game world from, allowing her to look at and indirectly communicate with the outside world. This screen disappears whenever the game is turned off, and usually presented an opportunity for her to get some rest. However, as she was now spiritually bound to the cartridge, she is effectively trapped within. Despite her unusual new life, she remained upbeat and chipper, eagerly exploring the world she found herself in with this intriguing new perspective. She eventually met and befriended the AI Daymaker, who had found his way into her cartridge through the cords of the Super Nintendo Entertainment System the cart was plugged into, proudly showing her his constructive abilities and status as the engineer of many of the levels Jennifer was now intimately familiar with. He would go on to visit her many times, earning her trust and respect.

Seeing that she was now stuck inside the game, it was only a matter of time before Peter realized the gravity of the situation he had put his girlfriend in. He gave up on trying to free her from the cartridge and quietly moved on from her, looking to cover his tracks and hide the evidence of what he had done. Heartbroken and confused, Jennifer was subject to intense negative emotion, hiding in one of the game's many barren, unused test levels to release her frustrations and sorrows. Her grieving was only halted by the arrival of Daymaker, who had come in for routine maintenance on the game's levels and hardware. The AI helped her work through her conflicting emotions, and she eventually calmed down, now ready to move on from Peter and his sudden betrayal.

Though harmless and kindhearted, END.smc does not take kindly to attempts to tamper with or alter the cartridge with outside means like cheat devices, and will forcefully prevent the game from being played if she detects any such alterations.

Abilities
As the game's guardian angel, END.smc is capable of manipulating many aspects of the game, including graphics, enemies, and even entire levels. With this power, she can alter the entire game to whatever her imagination cooks up, though she usually keeps this power under control so as to not go too far. END.smc is able to use this ability on herself, though in this instance it is mainly used to alter what outfit she is wearing at any given time.

When sufficiently bored, END.smc will assume the appearance and role of Luigi temporarily to play through the game herself as a second "player."

Weaknesses
Despite her new form and abilities, Jennifer is still an ordinary human woman, and is not a skilled fighter by any means. She also cannot physically leave the confines of the cartridge, except in non-canon scenarios such as crossover events.

Trivia

 * Despite the visual absence of eyes, END.smc has fully intact vision.
 * Due to being revived by supernatural means, END.smc no longer needs to eat or drink to live, though she can still do so.
 * Though she has never met them in canon, Jennifer is afraid of malevolent Super Mario World-based EXEs and Horrorbrews, such as the ghostly Princess Peach from Coronation Day/'the, Luigi from I HATE YOU, and MARIO. Despite his status as a World-based EXE, his harmless nature and close resemblance to the Luigi that she knows means that END.smc would not be afraid of Illusion.
 * While polite and amicable to most EXEs and Horrorbrews she happens to meet (with exceptions listed above), END.smc is especially close to Daymaker, considering him a trusted friend and confidante. Some time after her breakup and fallout with Peter, END.smc came to nurse a potent romantic crush on the AI, owing to his aid in helping her move on from her ex-boyfriend and Daymaker's kind heart.  As he is currently unaware of her feelings for him, this crush goes unrequited for the time being.