Your mission in this nice free online game is to collect treasures in the ocean and bring them to your mother ship. Use the ARROW KEYS to control your submarine. Press SPACBAR to launch the torpedos (you must buy them fist). Collect the treasures just by touching them and bring them to the base to earn money. You can refuel or repair your submarine and if you have enough money you can also buy upgrades for your submarine in the base. Collect letters and create word BONUS and you will gain some extra cash. Beware of dangerous fish, they can damage your submarine! You can kill them with your torpedos. Have fun!