You are a diver in the gulf of Maracaibo, Venezuela. Caribbean waters filled with sharks and other divers hides rocks, debris and underwater life. So you have to find the key to free another diver from a cage avoiding underwater obstacles and using underwater map. Your actions include: swimming in four directions (N-E-W-S), raising to the limited distance, lowering to the seabed, and fighting with the opponents using you hands. Radar below the playscreen shows the points of your position and positions of your current opponents.