Mer-Man is the Eternian Ocean Warlord and one of Skeletor's trusted evil warriors.
The Mer-Man Action Figure came with the same "power-punch" feature as the other Masters of the Universe figures, triggered when twisting and releasing the waist of the figure.
Mer-Man also came with removable chest armor and a sword.
The figure was also packaged with a mini-comic featuring the Masters of the Universe characters.
*Collector's Note: The mini-comic packaged with Mer-Man has been known to be different from figure to figure.