When the North American version of the game was originally released, Zack only had two costumes available to him. With the release of the Japanese and PAL versions, Zack gained two new unlockable costumes, and North America was able to obtain them through the Booster Disc/Pack.
|Image||Description||North America (3.0)||Japan (3.1) and PAL (3.2)|
|Costume 1 - Black shorts with flames on the legs and the word "GREAT" on the waistband, rope tied around both biceps, bandages wrapped around his forarms, off-white foot grips, and a pair of sunglasses.||Default||Default|
|Costume 2 - Indigo jacket with a blue shirt worn under the jacket, white pants, black formal shoes, matching wristbands, and a pair of sunglasses.||Default||Default|
|Costume 3 - Dressed as an alien.
The costume consists of a full bodysuit with glowing green cuffs, a hood with pointed ears and an antenna, and a small screen showing the image of a nuclear atom.
He also wears matching gloves and boots, and a pair of magenta sunglasses.
|Defeat twenty opponents in Survival Mode
Download from the Booster Disc, found in the Official Xbox Magazine or from the Booster Pack in Dead or Alive 2 Ultimate.
|Defeat twenty opponents in Survival Mode|
|Costume 4 - Purple-and-white hoodie with a pattern going down each sleeve, matching sweatpants, black shoes, matching wristbands, and a pair of sunglasses.||Download from the Booster Disc, which is found in the Official Xbox Magazine.
Download from the Booster Pack in Dead or Alive 2 Ultimate.
|Obtain an Xbox in Survival Mode|