1. Pepsi Blue

Pepsi Blue was a “Berry Cola Infusion” released in 2002. It's seen as one of Pepsi's biggest commercial failures because of the massive marketing push put into the product. The biggest problem with Pepsi Blue was that I personally expected it to taste kind of like Pepsi with berry, which it obviously didn't. It tasted like some kind of cleaning product instead.

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5. Mountain Dew Code Red

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http://www.buzzfeed.com/mjs538/6-soda-brands-that-didnt-survive-the-2000s/