Bubbles is the joy and the laughter of the Powerpuff Girls. She was created when a mutagenic compund called Chemical X splashed a vat full of "sugar, spice, and everything nice". Bubbles has superhuman strength, superhuman speed, invulnerability, the ability to fly, x-ray vision, heat vision, and a slew of other superpowers, which she uses to fight crime and the forces of evil in the city of Townsville.

Bubbles is ditzy, naive and clumsy, but she has a good heart and the ability to reason with her enemies when violence fails.