Mischievous little gremlin brat from Transformers Animated.

Tags: S_S_T_A, dark-skinned female, red hair, short twintails, parallel hairclips,

Outfit: two-tone dress, kneehighs, knee boots

Key: key necklace, (ID card, lanyard for initial appearance)

Halloween: mecha musume, Optimus Prime (Cosplay), combat helmet, elbow gloves, pleated skirt, armored boots,

Sleep clothes: t-shirt, shorts, loose socks, no shoes

Snow: earmuffs, scarf, padded jacket, two-tone dress, mittens, pantyhose, knee boots

Skates: bicycle helmet, two-tone dress, elbow pads, knee pads, kneehighs, inline skates,

Used enough to be worth noting: car interior