💥 Unleash the Ultra Beast within! Experience full flavor without the sugar! Stock up with 15 cans for endless energy on-the-go. Perfect for your next mountain getaway or daily grind. Dive into a frosty blue raspberry taste sensation. Stay energized from dawn till dusk with Ultra Blue! zero sugar blue raspberry flavor 10 calories Monster Energy Ultra Blue is a sugar-free energy drink that delivers a refreshing blue raspberry flavor with only 10 calories per can. Available in a convenient pack of 15, it's designed for those who seek a lighter-tasting energy boost without compromising on flavor or performance.