I feel like Mountain Dew is coming out with new flavors constantly.
Users on Reddit have been posting about the new flavor, Dark Berry Blast, according to Delish. The new Mountain Dew flavor is also listed on PepsiCo’s website. The flavor color is a dark blue, and the taste you'll have notes of blue raspberry and blackberry.
According to the sign at Applebee's the flavor has a space theme to it. The sign says, “In the depths and darkness of space, a dark energy has been released! With a blinding flash, blue raspberry and blackberry flavors collide into an explosion of sweetness and refreshment! Get ready to surf galactic waves of this stellar new flavor with Mtn Dew Dark Berry Bash,”