Fighters

Amy Rose Rosy the Rascal Playable Character Game Boy Advance Voice Actor (Japan) Taeko Kawata Voice Actor (United States) Jennifer Douillard

Chaos Hidden Character Game Boy Advance

Cream Cream the Rabbit Playable Character Game Boy Advance Voice Actor (Japan) Sayaka Aoki Voice Actor (United States) Sarah Wulfeck

Dr. Robotnik Dr. Eggman Boss Character Game Boy Advance Unplayable. Voice Actor (Japan) Chikao Ōtsuka Voice Actor (United States) Deem Bristow

E-102Γ Chaos Chaos Gamma Hidden Character Game Boy Advance Voice Actor (Japan) Taiten Kusunoki Voice Actor (United States) Jon St. John

E-121 φ E-121 Phi CPU Only Game Boy Advance Playable in single-cartridge versus mode only; otherwise a CPU-only opponent.

Emerl Playable Character Game Boy Advance

Guard Robo CPU Only Game Boy Advance Unplayable.

Knuckles Playable Character Game Boy Advance Voice Actor (Japan) Nobutoshi Canna Voice Actor (United States) Scott Dreier

Rouge Rouge the Bat Playable Character Game Boy Advance Voice Actor (Japan) Rumi Ochiai Voice Actor (United States) Lani Minella

Shadow Playable Character Game Boy Advance Voice Actor (Japan) Kōji Yusa Voice Actor (United States) David Humphrey

Sonic Sonic the Hedgehog Playable Character Game Boy Advance Voice Actor (Japan) Junichi Kanemaru Voice Actor (United States) Ryan Drummond

Tails Playable Character Game Boy Advance Voice Actor (Japan) Ryō Hirohashi Voice Actor (United States) William Corkery

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