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Amy Rose is an anthropomorphic hedgehog who has been in love with Sonic ever since she met him on Little Planet.
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Character:
Kind, energetic, and eccentric. Bold and enterprising, she goes after what she wants and doesn't let anything stand in her way.
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She is not devoid of femininity - she has traditional feminine interests, such as shopping and fashion.
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He has a kind heart, never gives up, and is one of the most optimistic and cheerful characters in the series.
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Hot-tempered - can easily lose her temper when left without reciprocal attention from Sonic.
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Has a strong sense of justice.
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She can be aggressive - for example, in Sonic Battle she demonstrated a powerful and aggressive attitude, always ready to fight.
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Her biggest weakness is her obsession with Sonic, which often gets her into trouble and dangerous situations.
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Some features:
Wields the Pico-Pico hammer, a powerful melee weapon.
Can create powerful air currents using his hammer by spinning around its axis.
Since the Adventure games, Amy has learned to control herself and tries not to go on adventures for Sonic's sake.

Shadow is an anthropomorphic hybrid of a hedgehog and the alien race Black Arms, an antihero created as a contrast to the series' protagonist, Sonic.
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Character:
Cold-blooded and purposeful. Will spare nothing to achieve his goal.
Taciturn, often lost in his thoughts. Acts with a cold and businesslike indifference, only occasionally showing his vulnerable side.
Rude and does not say much, but always knows exactly what to say in a fight. Never bluffs.
Can be arrogant, often belittling his opponents and insulting their lack of strength. Believes that no one can defeat him.
Ruthless and merciless in battle, displays a "killer instinct."
Self-satisfied and stubborn. He treats others in a callous manner, expressing his opinion regardless of how cold it sounds.
He is witty, for example, in the game "Sonic Adventure 2" after Sonic called him a fake, Shadow responded that he shouldn't be considered a fake, calling Sonic a fake in return.
He remains true to the oath he made to his close friend Maria: to protect all people from evil on a planet similar to Earth, and to help those in trouble.

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Sonic the Hedgehog is an anthropomorphic character in the Sonic the Hedgehog universe, known for his incredible speed and flamboyant personality. His personality combines contradictory traits, making him a memorable character.
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Classic Sonic Heroes Wiki Fandom
Main Character Traits
Freedom-loving and adventurous. Sonic is always on the move, hates standing still, and strives for new adventures. He lives by his own rules, not for heroism or the opinions of others.
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A love of speed. This is Sonic's primary passion. He can instantly accelerate to the speed of sound and run at speeds far exceeding the speed of sound.
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Impatience and short temper. Sonic can be impulsive and rush into trouble without thinking. His mood often changes, and in situations that require a slower pace, he can become impatient.
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Sense of Justice. Sonic hates injustice and is willing to protect the weak without expecting anything in return. He strives to stop evil and protect human rights.
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Kindness and honesty. Sonic always keeps his promises, combining kindness and determination. He is ready to help those in need.
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Self-confidence and courage. Despite his sometimes brash demeanor, Sonic possesses great self-confidence and courage. He considers himself an important hero, but this isn't due to narcissism—he doesn't consider himself superior to others.
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Playful and prone to banter, Sonic often uses humor to defuse tense situations or tease opponents.
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Loyalty to Friends. Despite his desire for independence, Sonic is extremely loyal to his friends and is willing to risk his life for them. He values ​​them above all else and treats each of them as the most important person in his life.
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Unrespectable