Join Barbie on the ultimate underwater adventure as she snorkels through three unexplored marine environments on a hunt for priceless treasures of the deep. Along the way, she'll visit colorful coral reefs and mysterious sunken cities. As Barbie explores the undersea world, she'll uncover nine unique mini-games that test her puzzle-solving and memory skills. One game will test Barbie's navigation skills as she helps Sandy the dolphin through a perplexing maze. Another game offers the brain-twisting task of finding matching items under clam shells. When Barbie beats a challenge, she'll receive part of a key that, when complete, opens a new undersea landscape to explore.