A limited release, Mountain Dew: Dark Berry was released to coincide with the movie "The Dark Knight Rises". Though I have no interest in Batman or anything related to him, and haven't since I was six-years-old, I got a 20oz bottle of this because I like Mountain Dew time-to-time.
To me, this almost just tastes like Voltage. Maybe with a little bit of berry on there, but there's nothing about this that stands out to me... It just tastes 'okay.' I was expecting a super grape-y flavor, but I didn't get much of any of that. Maybe some sour, like the Pitch Black Mountain Dew. It's not bad, but I won't miss it once it's gone, considering we already have Voltage year round.