Just as her brother was, Coco was an ordinary Bandicoot until she was taken from the jungle and genetically enhanced byDoctor Nitrus Brio to help Crash defeat Neo Cortex. It is unknown how she came to live with Crash afterwards as she was not seen in the first game stating how Crash and Tawna were created
Role in the series
From the moment she is introduced, Coco is established as a "mistress" sort of character and uses Crash to perform certain errands whenever she sees fit. Her work ethic can be best described as domineering; most of the time, she only works on what she wants to do and largely ignores what really needs to be done, such as cleaning the house (as displayed in Crash: Mind Over Mutant). Despite this, Coco is generally depicted as cheerful and high spirited, her educated wit often contrasted by an innocent childlike demeanor. Despite their contrasting personalities, Coco is far from prissy and is generally tolerant, if not outright amused by Crash's behavior. She also shares his altruistic code, even to some enemies (as Crash had taken sympathy on Krunk in Nitro Kart, Coco felt pity for Nash, using her hack smarts to make the "poor shark thingy" take a long needed nap).
She is great with technology as she carries a pink/turquoise laptop occasionally and is skilled at hacking, as seen in Crash Bandicoot 2: Cortex Strikes Back, when she intercepts Cortex's messages to convince her brother not to listen to him. Below the Bandicoot House lies Coco's VR Hub System, which resides in a secret lab seen in Crash Bandicoot: The Wrath of Cortex. It works similar to the Time Twister in that it can warp to different places around the world, the only difference being in the present time. She is a fan of martial arts films and masculine sports such as wrestling and NASCAR, stating that she could be. In Crash Tag Team Racing, Coco's personality is different: she is more feminine, preppy, sassy, often take eccentric poses, and has liking of beauty and shopping. Coco has an unexplained grudge against Nina Cortex starting from Crash Tag Team Racing, something that ends up requited after she openly competes for superiority above her in Crash of the Titans.
Coco is generally depicted a lucid foil for Crash, often taking the role of straight man or spokesman whenever Aku Aku isn't around. She is not without her own dizzy moments however, and is certainly not immune to the same slapstick buffoonery that so often befalls her brother.