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Characters

 * Kazuya - (voice actor: Kazuki Yao)
 * Lihua - (voice actor: Saeko Shimazu)
 * Barts - (voice actor: Ryōtarō Okiayu)
 * Wulong - (voice actor: Wataru Takagi)
 * Liza - (voice actor: Aya Hisakawa)
 * Boggy - (voice actor: Keiichi Nanba)
 * Gekkou - (voice actor: Hideo Ishikawa)
 * Jim McCoy - (voice actor: Kazunari Tanaka)
 * Marco - (voice actor: Hisayoshi Ogura)
 * ? - (voice actor: Minami Takayama)
 * ? - (voice actor: Mitsuaki Madono)

Bosses

 * Gonzales - (voice actor: Hisao Egawa)
 * Azteca - (voice actor: Masaki Ohkura)
 * General - (voice actor: Daisuke Gori)
 * Pierre - (voice actor: Ryo Horikawa)
 * ? - (voice actor: ?)
 * ? - (voice actor: ?)
 * ? - (voice actor: ?)
 * Greg - (voice actor: Ryusei Nakao) - The heavyweight Boxing chamion who J McCoy seeks to fight, he enters the tournament to fight J McCoy himself.
 * ? - (voice actor: ?)
 * ? - (voice actor: ?)
 * ? - (voice actor: ?)
 * Lieutenant - (voice actor: Kaneto Shiozawa) - The Final Boss of the game who host the new Kaiser Knuckle Tournament after General lost in the previous one.