Complete the indicated task to unlock the corresponding character in 2P Duel mode.

Character	How to unlock
Abobo and Burnov	Complete Mission 6 in Story mode.
Casey and Shannon	Complete Floor 25 in Tower mode.
Chin Taimei	Complete Mission 7 in Story mode.
Cody	Complete Mission 5 in Story mode.
Jake and Ashida	Complete Mission 12 in Story mode.
Jimmy Lee (from classic Double Dragon)	Complete Floor 35 in Tower mode.
Kodani and Jake	Complete Mission 10 in Story mode.
Linda and Linda M.	Complete Mission 3 in Story mode.
Mason	Complete Mission 4 in Story mode.
Mysterious Warrior	Complete Floor 40 in Tower mode.
Right Arm	Complete Mission 8 in Story mode.
Rowper	Complete Mission 2 in Story mode.
Sonny, Chin Seimei, and Yagyu Ranzou	Complete Floor 30 in Tower mode.
Williams	Complete Mission 1 in Story mode.
Yamazaki and Soeno	Complete Mission 9 in Story mode.