Pikmin: Cobalt Frontier

Pikmin: Cobalt Frontier is part of a series of Pikmin games created by Dolphinjamez. The game features a series of stories about Olimar's son, Dolphin, whose appearances are alike, only Dolphin has a light-blue beacon on his helmet rather than a red one. A Pikmin species called Cobalt Pikmin, and a hazard known as mercury, are also discovered in the series.