In ScubaVenture you need to dive for treasures! Your goal is to earn as many points as possible by collecting rare fish and opening valuable treasure chests along the ocean floor. Each of the underwater caverns contains several locked treasure chests; keys for the chests can also be located somewhere in the cavern. By collecting the appropriate key and unlocking the matching chest you earn points, and if you can unlock all of the chests you move on to the next level. Collecting certain types of fish also earns points. Poisonous fish, seahorses, electric eels and sea weed can all be found in the caverns and will cause you to lose one of your three lives if you're not careful.