Dead or Alive 5 Cheats

Unlockable Costume Exceptions
Christie Swimsuit: Clear the Legend course (solo match) in time attack mode with Christie without using a continue.
Kasumi Black Suit: Clear the True Kasumi chapter in Story Mode.
Kasumi Kimono: Clear the Kasumi vs. Christie battle in the True Kasumi chapter of story mode.
Lisa Swimsuit: Clear the Legend course (solo match) in survival mode with Lisa.
Tina Swimsuit: Clear the Legend course (solo match) in Arcade mode with Tina, without using a continue.

Trophies
There are 36 Bronze Trophies, 8 Silver Trophies, 3 Gold Trophies, and 1 Platinum Trophy.

A Fight to Remember (Bronze): Save a replay.
Ahhh, Memories (Bronze): View your photos in the Album.
Akira Yuki (Bronze): Unlock Akira.
Anybody, Anytime, Anywhere (Silver): Fight 50 people through invitations.
Arcade Cleared (Bronze): Clear 1 course in Arcade mode.
Arcade Master (Silver): Clear all courses in Arcade mode.
Blow 'Em Away (Bronze): Successfully land a Power Blow.
Cliffhanger Comeback (Bronze): Successfully block an opponent's attack during a Cliffhanger.
DOA5 Is My Life (Gold): Fight online 1000 times.
DOA5 Master (Platinum): Unlock all trophies.
Down You Go (Bronze): Successfully attack during a Cliffhanger.
Exercise Newbie (Bronze): Perform all moves for all characters in Command Training.
Failure Teaches Success (Bronze): See all characters' losing poses.
Fighter, Know Thyself (Bronze): View your results in Fight Record.
Fighting Entertainment (Bronze): Have your first fight outside of Training or Versus modes.
Fighting For Real (Bronze): Play a Ranked match.
Fighting in Style (Gold): Unlock all costumes.
First Tag Team (Bronze): Play Tag Battle.
First Throwdown (Bronze): Send a Throwdown Challenge to someone in your Fighter List.
Fledgling Fighter (Bronze): Fight 10 Versus matches.
Gesundheit! (Bronze): Trigger the Special Danger Zone in The Show.
Get out there and Fight! (Bronze): Play a Lobby match.
How Do I Fight Like a Pro? (Bronze): Display the Move Details.
How Do I Fight? (Bronze): Display the Move List.
I Read Every Move (Bronze): Win without taking any damage.
Insomniac (Bronze): Watch all movies in Story mode without skipping any of them.
Jump In (Bronze): Play a Simple match.
My Fight, My Rules (Bronze): Create your own online lobby.
On the Edge of Your Seat (Bronze): Play Spectator mode.
Rival Rampage (Silver): Fight online 100 times.
Rival Rumble (Bronze): Fight online 10 times.
Rivals (Bronze): Register 5 fighters in your Fight List.
Safety First (Bronze): Turn Danger Zones off on the Stage Select screen.
Sarah Bryant (Bronze): Unlock Sarah.
Say Cheese! (Bronze): Take a photo in Spectator mode.
Survival Cleared (Bronze): Clear 1 course in Survival mode.
Survival Master (Silver): Clear all courses in Survival mode.
Tango Kilo November (Bronze): Trigger the Special Danger Zone in Hot Zone.
The Fight Never Ends (Silver): Fight 100 Versus matches.
The Power of Two (Silver): Perform 50 kinds of character-specific tag throws.
Time Attack Cleared (Bronze): Clear 1 course in Time Attack mode.
Time Attack Master (Silver): Clear all courses in Time Attack mode.
Training Hard (Bronze): Play Training mode for 1 hour.
You Asked for It! (Bronze): Fight 10 people through invitations.

Rare swimsuit costumes
These can be unlocked using ANY character.

Christie's Swimsuit: Beat Solo Time Attack mode on Legend difficulty without continuing
Lisa's Swimsuit: Beat Survival mode on Legend difficulty.
Tina's Swimsuit: Beat Solo Arcade mode on Legend difficulty without continuing

Unlock Extra Costume for all characters
Beat Arcade Mode on True Legend with desired character for extra outfit. (Continues allowed)

Unlockable Stage
Lab: Cleared Dead or Alive 5 "Story Mode" to unlock this stage.