Koi is a highly energetic and daring playable toon inspired by a Koi fish. Known for her hacking skills, she is a loyal friend who is constantly checking up on her teammates, although she secretly struggles with loneliness when left by herself. Koi has a cream base color with vibrant, soft-orange splotches across her face. She features fins atop her head, on her back, and a cream-colored tail, all with a dark-orange gradient. One of her fins sports a small gold earring. She has heterochromia; her right eye is yellow, and her left eye is blue. She wears a maroon high-neck tank top and baggy jeans that feature a yellow smiley face on the right leg. Koi is incredibly outgoing, loud, and rarely turns down a dare. She is highly confident in her abilities but also deeply appreciates kindness shown to her by others. She frequently checks on her friends and offers solutions to help them out, though she becomes insecure when she is alone. Like other characters in the game, Koi exists in a mysterious, reality-warping cartoon dimension filled with glitches, abandoned experiments, and corrupted data.

She is a butterscotch-brown chipmunk characterized by her small size and her signature ability to bake and distribute waffles to aid her team. Appearance and Personality Weffle is a cute, cartoonish chipmunk with exaggerated proportions, wearing a small white dress. She prefers traditional methods over modern technology and loves sharing her baking skills with her friends, especially Nimbus.

Unicorn / Equine Anthropomorphic, light cream coloration Phantasia is defined by her hyperactive and joyful energy, though she can be incredibly reckless—often mashing buttons and panicking her peers like Guido. She is fiercely dedicated to her teammates and healing them, which leads to her being very hard on herself when things don't go as planned. Additionally, she can be competitive when it comes to shared items, frequently squabbling with her sister, Copper, over pastries.

light grayish-blue dolphin with a pointed snout and an extremely long tail that reaches the floor. He wears a sleeveless, dark magenta hoodie, black-and-white checkered wristbands, and antique fuchsia pants held by a loose brown belt. He wears glasses to correct his poor vision (leaving one eye always visible in white) and black-and-grey wireless headphones. He is characterized as deeply relaxed, chill, and sometimes coming across as lazy to the other characters.