Mantan

Mantan (マンタン) is a manta robot ray enemy that only appears in Dive Man's stage in Mega Man 4 and Mega Man III. Mantan swims straight, but at times it will veer slightly upward or downward.

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

Trivia

 * A very similar Manta ray robot appears in the game Mega Man Rush Marine.