Einstein

Einstein was a player character in Anarchy at the All-Star Arcade!!, played by Brinelex Brine. They are based on the cat capable of breaking time and space by moving through different layers of reality to go from one point in space and time to another from Mateusz Skutnik's "Submachine" series. They are, however, still a cat, motivated by the needs of normal cats, and communicate like a normal cat.

Endgame Results
STRANGE KITTY ENDING

Narrative Arc
Although Einstein is capable of breaking the space-time continuum, he is still a cat, and therefore did not pay much attention to the events that unfolded in the game, outside of meowing, purring, and occasionally hissing. He did not go through any development in his character because he is a cat. Cats do not need to go through character development.

Einstein started the game in the Airship, looked around the environment for something to push off of a ledge, but decided then to fight against the dark spirits in the Airship instead. The spectators also decided to fire the Airship's canon at Einstein.

He did meet most characters throughout the game, but barely interacted with them due to his inability (and unwillingness) to communicate. He also spent most of the game going around the map, looking for different important-looking objects to push off of ledges, such as pushing the Bible off of a table, pushing a Star off of the edge of the Universe, and pushing the wheel of the Airship, leading it to go into the Basketball Court as well as making the star fall from the same Airship.

Brinelex was not at his computer when the game ended, so it is safe to assume that Einstein was likely taking a nap after all of that pushing-objects-off-of-other-objects business.