The ocean teams with sunken treasure. It can be yours if you are willing to take the risk to get it.

But, it also teams with wild animals. Dive deep and do battle with vicious sea creatures to reach the treasures. Shoot the offending monsters, but be warned, they shoot back!

Grab the bonuses to upgrade weaponry.

The scuba diver follows the mouse. Click to shoot. Holding the spacebar while shooting keeps the diver in place for precise aiming.

Watch out. Though you start out at a kiddie-pool level of difficulty, the monsters become progressively tougher and more aggressive as you advance.

Be sure to grab all the upgrades. You will need them in order to survive the higher levels.

And by all means, keep an eye on your air tanks -- you can't breathe water!