Rouge the Bat is a determined treasure hunter (more like a jewel thief) and part-time government agent who plans to make all the gems and treasures of the world hers. Her current jewel obsessions are the Master Emerald and Chaos Emeralds. She made her debut in Sonic Adventure 2 and has been featured in the Sonic the Hedgehog console games, along with five handheld games since.
In eight of the eleven games she has appeared in to date, Rouge wears a skintight black body suit with a large pink heart-shaped breast plate, long white gloves, and white thigh-high boots with pink hearts on the toes. She also has long eyelashes and wears blue or pink eyeshadow. Rouge is 18 years old, 105 cm (3ft 5in) tall and weighs 36.2 kg (80 lbs) to ~40.8 kg 90 lbs. In Sonic Heroes gameplay she wore a different outfit with similar color schemes and heart-shaped details.