Skullmet

Skullmet (スカルメット) is an enemy that appears in Skull Man's stage in Mega Man 4 and Mega Man III. On the back side it looks like a skull and the front side has one single eye. To destroy it, Mega Man must shoot it in the eye (charged shot is best). Remember, when you and the Skullmet are face-to-face, the Skullmet will start shooting at you. The Rain Flush attack will destroy it in several hits despite where Mega Man is standing as long as they're on the same screen.

Hits Data Chart
Amount of shots/hits from Special Weapons it takes to destroy a Skullmet.

Trivia

 * Skullmet's name may be a reference to the classic enemy Met.