Enter 1, 7, 14, 16, 5, 12, 10, 3 as a password to unlock Basilicum.
Play as ChikusaSuccessfully complete Arcade mode with Gokureda to unlock Chikusa.
Play as Didi and ZiziSuccessfully complete Arcade mode with Lambo or I-Pin to unlock Didi and Zizi.
Play as Hyper Dying Will TsunaSuccessfully complete Arcade mode with Tsuna to unlock Hyper Dying Will Tsuna.
Play as KenSuccessfully complete Arcade mode with Yamamoto to unlock Ken.
Play as LanciaSuccessfully complete Arcade mode with Mukuro to unlock Lancia.
Play as M.M.Successfully complete Arcade mode with Bianchi to unlock M.M..
Play as MukuroSuccessfully complete Arcade mode with Hyper Dying Will Tsuna to unlock Mukuro.
Play as SqualoSuccessfully complete Arcade mode with Basiliscum on the Hard difficulty setting to unlock Squalo.