The Game Boy version of SeqQuest DSV. In contrast to the 16bit console releases (SNES, Genesis) it is a 2D side-scroller and the missions are different too.
You are taking control of the SeaQuest Deep Submergence Vessel serving the United Earth Oceans Organization. You will be sent on various missions to help Earth and its oceans. The SeaQuest is equipped with torpedoes to defend against enemy ships and a sonar to find the destination of your next mission. There you can deploy various other vehicles which will help you to solve the different tasks.