A cheerful, kind, optimistic and energetic go-getter, Amy is a determined young hedgehog who lets nothing stand in her way. She is girly and sweet, but also temperamental and can be quite stubborn, having a hard time taking a "no" for an answer. She is best known for her long-standing crush on Sonic the Hedgehog, whom she would follow anywhere (if he let her). Like Sonic, she also sometimes find fun in fighting evil and helping others. She similarly takes a simple joy in fighting Badniks.

The time Amy spent in the Resistance has caused her to mature to a great degree, having demonstrated both leadership and logistical skills that has relieved Knuckles in virtually all organizational matters.