- PC
Unlocking Tower Mode:
The survival mode called 'Tower' will become unlocked when you complete the game by defeating the boss in Mission 12.
Unlock More Characters for 2-Player Duel Mode:
When you complete the following tasks you will unlock the corresponding character for 2-Player Duel mode.
Abobo and Burnov:
Complete Mission 6 of Story mode.
Casey and Shannon:
Beat Floor 25 in Tower mode.
Chin Taimei:
Complete Mission 7 of Story mode.
Cody:
Complete Mission 5 of Story Mode
Double Dragon 1 Jimmy Lee:
Beat Floor 35 in Tower mode.
Jake and Ashida:
Complete Mission 12 of Story mode.
Kodani and Jake:
Complete Mission 10 of Story mode.
Linda and Linda M.:
Complete Mission 3 of Story mode.
Mason:
Complete Mission 4 of Story mode.
Mysterious Warrior:
Beat Floor 40 in Tower mode.
Right Arm:
Complete Mission 8 of Story mode.
Rowper:
Complete Mission 2 of Story mode.
Sonny, Chin Seimei, and Yagyu Ranzou:
Beat Floor 30 in Tower mode.
Williams:
Complete Mission 1 of Story mode.
Yamazaki and Soeno:
Complete Mission 9 of Story mode.