DEAD OR ALIVE 4 UNLOCKABLES
EIN
To unlock Ein in other modes, play through Story mode as Hitomi and defeat him at the end. After the intermission sequence you will be notified that Ein is unlocked. This applies to all modes but Story mode, as hidden characters do not have a story.
Gen Fu
Play through the game as Eliot and finish his Story mode. After the intermission sequence you will be notified Gen Fu is now playable in all modes except Story mode. No hidden characters can be used in Story mode.
Helena
Complete Story mode with all sixteen characters to unlock her in all modes.
Leon
Complete Story mode as Zack to unlock him in all modes except for Story mode.
Spartan-458
Complete Story mode as Helena to unlock Spartan-458 from Halo in all modes except for Story mode.
Tengu
Complete Time Attack mode with all characters, including the bonus characters.
Halo stage
Complete Story mode as Helena to unlock a stage similar to the first stage of Halo 2, the Hangar Area.
Increased bounciness
As in the previous Dead Or Alive games, you may enter your age as "99" by going into your profile from the main menu. This will result in the female characters' breasts to bounce more than usual.
Biolab Core stage
Finish Story mode.
Tatami stage
Unlock all costumes and system voices and complete story mode for all seventeen characters to access the Tatami stage, which has a floor mat with no walls.