PS135

PS135 was created made by Twitter user @Fire_Mario_Fan at an unstated date.

Please note that this article will be primarily referring to the canon variant of the character, not the FNF/Mario Mix version.

Biography
PS135 is an entity that manifests and disguises himself in the form of Mario's sprite as its seen under the influence of the Powerup Incrementation Glitch within Super Mario World, specifically during Power Up State 135 (hence it's namesake). It uses Mario's normal look to lure in prey to kill and consume for sustenance, using the Forest of Illusions as a home of sorts and hunting ground.

Initial interpretation of the character showed him having appeared out of nowhere, finding an unknown way to take Mario's form, and attempting to lure in victims under the pretense of "striking a deal" with them. With this strategy in mind, he began terrorizing and torturing many of the residents in Dinosaur Land, including key players such as Luigi, Princess Toadstool, Oogtar, and Yoshi. Bowser eventually made a deal with PS135 to let him off the island and escape, but leaving the others, including his own Koopalings, stranded, with no foreseeable hope of escape.

Aside from that, PS135's true origin has not been elaborated upon yet, unclear on what specific type of entity he is, where he came from, and why.

Appearance
While disguised, PS135's appearance is exactly that of Mario's sprite appearance in SMW; pink shirt and cap, baby blue overalls, white buttons and gloves, brown shoes, and a black moustache, hair, and cap brim. Albeit lacking any visible eyes, for an unknown reason.

When transformed, his entire presence shifts dramatically, most notably his face. The skin fully caves into itself, revealing a hollow void where his jaws lie, as it stretches out to make room for his enormous gleaming red eye lodged behind a pronounced set of glowing red teeth. Despite most of any real facial structure being absent, he sides of his moustache are kept, to still have the advantage of a Mario-like silhouette. His colors also shift dramatically to be in-line with the glitch he's drawn from, his hat and shirt shifting to dark green, and his overalls, hair, and hat emblem shifting to a wine-ish brown. He also becomes more olive-skinned, and significantly taller, as well as his clothes gaining an inexplicable bright green ambient light that's always behind him, regardless of what angle he's standing at or being viewed from.

It's unknown if he has a "true form", or any kind of appearance outside of Mario.

Abilities
''Many of PS135's abilities are unknown as of right now. Ones that are confirmed by Word-of-God or can be at the very least assumed are as follows:''
 *  Digital form:  Being reliant on an irregular trigger condition within a game's data, PS135 utilizes glitches to take form and carry out tasks.
 * Sprite/Asset Physiology: PS135 can harness a vessel and use it as a body for direct actions.
 * Shapeshifting: Assumedly immediate or gradual. PS135 utilizes his Mario sprite as a disguise, but should the facade drop, it shifts in color, stature and reveals it's one enormous eye through it's twisted face. It's unknown if this is the extent it can change or not, or if he has complete control over how it does. It's form is seemingly considered "complete" when fully contorted and in possession of a cape feather.
 *  Arsenal:  PS135 has every power-up within the Super Mario World game at his disposal, except for the Starman/Power Star.

Weaknesses

 *  Fallibility Condition:  Should PS135 collect a star, the state of the glitch in which his form is tethered to will end, and by effect disrupt his physical presence, assumedly killing him.
 *  Blindable:  The gazing red eye within his revealed form's maw is his most vulnerable spot. Hitting it in some way, such as with a projectile like a fire flower, is said to cause him blindness (for what can be assumed is a temporary period, at the very least.)
 * lol?: He is afraid of Uncle Grandpa.

Trivia

 * As said before, PS135's namesake and colorization is an ode to the state of the glitch when it reaches 135.
 * You can find PS135 in Super Mario World but you have to do the same trick 135 times.
 * He can give good head and Polyfield has a screenshot for proof.