Had an interesting idea. You may have noticed that in this post I implied that there may be at least one non-game-based living Character-Level server somewhere out in the digital multiverse that nobody knows about yet because they think it's impossible for one to form without outside influence. Well, I figured out which one it is: A universe made from a pirated collection of every official episode, movie, short, music video, and even scans of the dubiously canon IDW comics run of My Little Pony: Friendship is Magic, along with any other official media I can't think of at the moment. Because I can. Whoever owns the collection doesn't know that they have a real live Equestria at their fingertips because the actual media storage is a layer above the living universe (or universes, what with Starswirl's Mirror Portals), so watching/reading the stuff doesn't affect what's happening down there or vice-versa, and the characters also don't know that they're digital beings brought to life by the love of a fan.

If anyone, be they Program, Virus, Anomaly, or Character, were to go there they'd be changed into a form that fits the universe (so a pony/dragon/griffon/etc. choose whatever fits best in the main world, a human with the same color scheme as their Equestria form in the Canterlot High world) Because Mirror Portal Magic, though Code-Level entities can change back to their usual form if they prefer. When they leave they go back to normal. If any locals ever managed to go to other digital universes they'd stay in their usual forms because Most Universes Don't Do That. It's similar to the Enforced Art Styles of the Cats are Liquid and Fairly Oddparents universes, though FiM and CaL are obviously more drastic than FOP.

The first major characters to find out about this are Ozymandias and Garyboy, who stumble upon it at some point post-release and decide to use it as a base of operations, on the grounds that 1) Nobody else knows this world exists, 2) if anyone else did find it they'd never expect those two to be living there, and 3) the whole transformation thing means they can hide in plain sight. When they're there Garyboy is a purple-and-green pegasus with a black-cupped plunger for a cutie mark, while Ozzy is a vaguely serpentine dragon and his maneuver form is a Kirin. They later find out that prolonged exposure to Equestria's magic has had side-effects, namely that they can now use their Equestrian Form abilities (weather magic for Gary, fire breath, flaming rage form and unicorn magic for Ozzy) in their normal forms. That'll be fun to show off to their enemies.