What is the name of Crash's younger sister?

Crash's younger sister is Coco Bandicoot. She is an intelligent, technically minded bandicoot who often helps Crash by building devices, analyzing problems, and warning him about danger.

Coco first appeared in Crash Bandicoot 2: Cortex Strikes Back, where she contacts Crash and tries to alert him to Doctor Cortex's plans. Her character contrasts with Crash's carefree personality: she is organized, skeptical, and inventive, and is frequently shown with a laptop or other technology.

Coco later became playable in selected levels of Crash Bandicoot: Warped and appeared as a playable character in several later games. The 2017 Crash Bandicoot N. Sane Trilogy expanded her role, allowing players to use Coco across much of all three remastered games. A common mix-up is confusing Coco with Tawna, Crash's former love interest, or Nina Cortex, who belongs to the Cortex family rather than Crash's.