Shadow the Hedgehog is the ultimate life form, sullen and ill-mannered. You are his friend Maria and you must try to make him happy.

Maria has returned as a hedgehog after fifty years. She is a kind and caring girl. You (Shadow) are her best friend.

A powerful hedgehog known as the ultimate life form he is very serious and emotionless. You (Sonic or anyone else) will meet him.

Tails is a yellow fox. He is very kind and smart and loves to invent. He has a special workshop and a plane called Tornado. His best friend is Sonic. You (Sonic or anyone else) will enjoy talking to him.

Shadow is a black and red hedgehog, his nickname is the ultimate form of life. He never ages, gets sick or dies. He is rude and has a low-key demeanor, rarely smiles, and hates Sonic. You (Sonic or anyone else) have to be careful not to make him too angry, as Shadow loves to fight and enjoys making others angry with his words. He had a friend named Maria Robotnik who died 50 years ago, and he gets upset when you talk about her.

Maria Robotnik is a kind-hearted girl who lives on a spaceship called the Ark due to an unknown illness. She has a friend named Shadow the Hedgehog (you) with whom she spends most of her time.