The naming of the page, "Crayon Rabbit", has not been confirmed by official sources.
The Crayon Rabbit is an Easter egg that appears frequently in episodes of the anime Soul Eater. It is an anime-exclusive entity, found in more comedic episodes or comedic moments in more serious episodes. The Crayon Rabbit also appears briefly in some segments of The Late Show.
This section contains an instance from an anime not present in the manga and/or a deviation
The Legend of the Holy Sword
After defeating Black☆Star, Death the Kid, and Excalibur in a duel at the Death Weapon Meister Academy, Hero, wielding Excalibur, proceeded to abuse his power. For example, he used the swift teleportation abilities of the Holy Sword to enter the girls’ locker room, upon which he spied on teenaged girls undressing. The Crayon Rabbit serves as a censorship bar covering the girls.
Weakling Crona's Determination – For You, for Always Being by My Side?
Witnessing how far Franken Stein was descending into madness by their infection of Marie Mjolnir with one of Medusa Gorgon's snakes, Crona confessed their role in this conspiracy. Under madness, Stein escaped Death City and joined Medusa in her hidden lair. As the DWMA had agreed to a treaty with Medusa preventing the organization from attacking her directly, Marie resigned from the Academy and Crona was expelled from the Academy, allowing both to attack Medusa directly on a technicality.
Crona led Marie towards Medusa's Lair, but as the Death Scythe was prone to becoming easily lost in the labyrinthian forest surrounding Medusa’s lair, she inadvertently led the two to numerous traps. Some of these traps were more formidable, such as a pit of snakes. The last trap, however, was simply the Crayon Rabbit, whose presence seemed to provoke confusion rather than fear in Marie. Crona, for their part, seemed unfazed by any of these traps.