Splash Woman

Splash Woman is one of the Robot Masters (bosses) in Mega Man 9 for WiiWare. She is known as being the first and as of yet only female robot master in the entire series. She's also the only boss in the game designed by series veteran Keiji Inafune, who is known for working on the series since the original Mega Man.

Description
Splash Woman greatly resembles a mermaid who wields a giant trident. The battle against her takes place entirely under water, and she'll summon a host of fish to attack Mega Man during the battle by singing a song. After the player defeats her, he'll come in possession of the Laser Trident. Originally Splash Woman was created in order to save those who fell victim to sinking ships.