Mommy Long Legs has a bright pink, stretchy, rubber-like body with an extremely thin, flexible build. Her head is rounded with large, expressive green eyes, long black eyelashes, and a wide, cheerful smile. Her pink hair is styled into a short, curled bob with a blue hair tie. Her long arms and legs can stretch far beyond normal proportions, allowing her to reach across rooms, climb walls, and move in unusual, spider-like ways. She has darker pink hands and feet, with her limbs able to bend and twist almost effortlessly. Mommy Long Legs is energetic, playful, and outwardly cheerful, often acting like a friendly and caring mother. Beneath that cheerful personality, however, she can become controlling, manipulative, possessive, and extremely hostile when things don't go her way. She enjoys games and challenges, but she expects others to follow her rules. When angered or threatened, her playful behavior quickly turns intimidating, and she can become relentless in pursuing whoever has upset her.