Nina

How Nina joined the Tourney
The Syndicate told Nina that Steve Fox was her own son, but Nina felt nothing. Later, the Syndicate fell and left Nina with no purpose. She decided to meet the God of Thunder, Thor Odinson, to try to recover her past. But the moment she saw Thor, everything came rushing back. Now it's on! They fought for days. In the end, they agreed to settle their rivalry in the Smash Bros. Tourney.

Blonde Bomb (Neutral)
Nina thrusts her palms forward.

Shotgun (Side)
Nina fires a bullet from a shotgun.

Grappling Hook (Up)
Nina uses a grappling hook to get back to the ledge of a stage.

Rolling Dash (Down)
Nina slides forward, attacking anyone in her path.

Evil Mist (Hyper Smash)
Nina says "You will not escape!" and summons a mist that will cause anyone that touches it, with the exception of Nina herself, to fall asleep and gradually receive damage.

Double Explosion (Final Smash)
Nina sets off two bombs and they all explode at the same time as she says "Enough!".

Bonus Costume
Unlike her sister, Anna, Nina has a Bonus Costume in Super Smash Bros. Tourney. It is based on her costume from Tekken: Blood Vengeance. To unlock this Bonus Costume: After meeting one of the requirements listed above, the announcer will say "You've earned a new costume!" and a Smash Ball (appears on the lower-right corner) will appear with a message saying "Nina's Bonus Costume has been unlocked!".
 * 1) Clear Classic Mode with Nina.
 * 2) Play 5 VS Mode matches with Nina.

Victory Animations

 * 1) Nina walks forward, then she swings out her right arm and says "What do you say we celebrate?".
 * 2) Nina spins around, says "Look at this...", and then she says "You think you've got me cornered..." before chopping with her arm.
 * 3) Nina puts her left hand to her head and says "Isn't it past your bedtime?".

Trivia

 * Nina's costume from Tekken: Blood Vengeance returns as a Bonus Costume in Super Smash Bros. Tourney. This is also true with Xiaoyu, Jin, Ganryu, and Kazuya, and Lee.
 * Unlike the Tekken series, which includes Nina having Anna as her rival, Super Smash Bros. Tourney features her having one of Marvel's Avengers as her rival. In Nina's case, the Avenger is Thor.