Gatorade is giving all my Nosey Neighbors a major dose of nostalgia this fall with the return of Citrus Cooler. Loved for its tangy, tangerine like taste, Citrus Cooler has long been one of the most requested throwback flavors in Gatorade history. Now, thanks to a collaboration with Netflix’s hit series Stranger Things, the classic is back. NetflixThe limited-edition release will feature two varieties: the traditional Citrus Cooler and a mysterious “Upside Down” version, which comes in a darker shade and is rumored to have a slightly different flavor profile, officially listed as Black Citrus Cooler. The return of Gatorade Citrus Cooler coincides with the highly anticipated final season of Stranger Things.