*Thorn is a doppelgänger of her mainstream counterpart, albeit with some notable differences. As such, she is a pink-furred anthropomorphic hedgehog with light green eyes and peach skin covering her muzzle, inner ears, and arms. She has a dark pink fading to a lighter gradient fur on her head. Her mohawk-stylized bangs are also light pink and some of her quills are tied back by a yellow hair tie, while the others are in three small braids held by blue hair ties on each side of her head. She also has a small black nose, triangular flop ears on top of her head, and two medium-length eyelashes on each side of her eyes. Thorn usually wears blue and yellow paint marks on her face and forehead with dark pink marks on the edges of her eyes.

For attire, she wears a brown crop-top with a big green leaves-made collar, a white bandage on her upper right arm, a blue marking on her upper left arm, two gold earrings on each of her ears, a thin brown headband with wooden quills on each side, a green skirt with a dark green underside held by a blue belt with a pocket, stone bracelets with spikes, white gloves with pink marks on the fingers and wood backsides held by ropes, and boots made of leaves and tree bark.

Rusty Rose is essentially a fragment of the original Amy Rose, albeit with some notable differences. She is a pink-furred anthropomorphic hedgehog with peach skin, which is slightly grayed compared to the original Amy's, covering her muzzle and inner ears. She has a small black nose, triangular ears on top of her head, and no back spines. Her entire body except for her head is robotic, making her a cyborg. Due to this, much of her body is dark gray in color, which is partially painted red but by the time of her introduction is heavily wearing. She contains a pink Flicky within her chest cavity, which is used to power her. Rusty's cyborg body is poorly maintained and visibly rusted, hence the "Rusty" part of her name. As a result of her cybernetic body, Rusty is taller than Amy Rose.

Rusty Rose's head, which remains the only organic part of her, has her five short downward-pointed quills mechanized and the four-spiked bangs on Rusty Rose's forehead have been replaced by a saw blade. Her left eye remains for the most part normal, but has a cybernetic, dark green pupil instead of black and one medium-length eyelash as opposed to two. Her right eye, by contrast, is fully mechanical, having a black sclera with a glowing iris, and a mechanical layer resembling an air vent's cover with an eyelash-like end placed in front of it. The iris of her right eye can change color depending on her current allegiance; red when controlled by the Chaos Council, yellow when under Nine's control, and deep pink when she switched sides.

For attire, Rusty Rose wears slightly worn-out red and white mechanical armor, with additional silver-and-red armor on her legs. The parts making up Rusty's arms are asymmetrical, being made of visibly different parts, and there is additional reinforced armor only on her left foot.

Black Rose is a doppelgänger of her mainstream counterpart. As such, she is a pink-furred anthropomorphic hedgehog with light green eyes and peach skin covering her muzzle, inner ears, and arms. She has a small black nose, triangular ears on top of her head, and no back spines. She also has two medium-length eyelashes on each side of her eyes. Additionally, her five short head quills point downwards, somewhat resembling a bob cut. She also has three spikes for bangs on her head, and a short pointy tail.

For attire, Black Rose wears a dark brown bandana that covers her left ear. She wears a dark brown vest with golden trim, and under it is a sleeveless, pinkish-white shirt with stitching. She wears a set of dark brown leather gloves paired with golden bracelets on both her wrists, complete with a red belt with a golden buckle, red and white striped shorts, and a pair of knee-high, dark brown heeled boots, which features lighter cuffs, as well as red belt straps with golden buckles, matching her belt.*