Rouge

Rouge the Bat is a character from the Sonic the Hedgehog series.

History
She has the ability to fly with her bat wings. In the sonic series, Rouge plays a somewhat big role. She is a crook who is fond of stealing the Chaos Emeralds along with Shadow the Hedgehog. She occasionally will help out Sonic and friends. She has shown to have a crush on Knuckles, however, it might be so she can steal Knuckles' Master Emerald.

Mario and Sonic at the Olympic Winter Games
Rouge makes an appearance as a boss in the Festival mode in the Wii version. It is known if she will appear in the DS version.