Depth throws you into a tense underwater arena where you can choose to stalk or defend. On one side, you become one of seven distinct shark species—Great White, Tiger, Bull, Hammerhead, Mako, Thresher or even the prehistoric Megalodon—using speed, stealth and razor-sharp teeth to hunt down divers. On the other, you suit up as a diver, scouring the ocean floor for treasure to upgrade an arsenal that ranges from spearguns and pistols to assault rifles and sea mines.