She was a member of the Freedom Fighters, the best friend of Cream, and the unrequited love interest of Sally. She lived in the Iron Forest for most of her live until being found by Sonic. When Exetior invaded Mobius, he disguised himself as Sonic and attempted to kill Amy under the deception of asking her out on a date.

When Amy was killed, her demonic form was all spotty, as her new form had holes on the entire left side of her body, looking like her skin was slightly melting.