Not to be confused with Dark Berry Bash
Dark Berry was a mixed-berry flavored soda and was midnight blue in color, much darker than that of Voltage, Revolution, Amp Game Fuel Charged (Berry Blast), Blue Shock and Thin Ice Freeze. The Romanian version used a similar formula, but its color was violet.
On March 25th, 2012, an image of a possible new flavor 12-pack box appeared on the image-sharing app Instagram. After much speculation, Mountain Dew confirmed on May 14th, 2012 that it would be released in late-June as part of their partnership with Warner Bros. Pictures' and Legendary Pictures' 2012 film The Dark Knight Rises.
The flavor began showing up in stores in mid-June and promoted the 2012 film, The Dark Knight Rises, as well as codes that give fans access to exclusive film content through DEWGothamCity.com. It was also released in Denmark and Iceland for the same promo. It was later released in The Philippines exclusively at 7-Eleven stores. It was later released in Romania in 2012, where it was a permanent addition to their lineup. The Danish Dark Berry was imported from Iceland by Hansen&Co. It was made by Ölgerðin.
- Even though the United States logo used the Mtn Dew art with blue font, the Romanian logo used the 2005 logo art and pink font.
- While the United States used a clear bottle, the Romanian bottle was purple-tinted.