In the extended version of the Dolphin Prince saga, the narrative evolves into Ganbare! Marine Kid. Marine, formerly known as Dolphin Prince, embarks on underwater adventures alongside his trusty companion, Whitey the white dolphin (known as Splasher in the U.S. version). Endowed with genetically enhanced aquatic prowess and reliant on Oxygum for breathing underwater, Marine aids his oceanographer father, Dr. Mariner, who serves in the Ocean Patrol. This revamped series amplifies the original storyline with new characters, heightened concepts, and a fresh title, showcasing Marine Kid's relentless efforts to safeguard the seas.