Amy Rose is a pink anthropomorphic hedgehog who wears a red and white dress, red boots with a vertical white stripe, white gloves, and gold bracelets on her wrists. She is a hedgehog with an optimistic vision of the situation, she is kind to her friends... Especially with Sonic, she has feelings for him but he ignores her feelings.

Cheerful, affectionate, energetic, supportive, lov

loyal, nervous, honest, kind, reckless

Cruel, impulsive, domineering, cold, he no smiles

Arrogant, cold, sadistic, dominant

Mephiles is identical in shape to Shadow the Hedgehog, only gray-green in color and has no mouth, his crystalline form being an anthropomorphic hedgehog with no feet, glowing green eyes with red sclera. It can be fused with Iblis to be Solaris. He hates Shadow and Sonic, he can manipulate shadows to create "clones" of himself, he can move as a mass of darkness on the ground, etc