About the Met
The Met (short for the Metall, Metool, Mettenna, and Mettaur variants of the name), also known as "Hard Hat" is another flagship enemy of the series. Appearing in nearly every game, the average Met is a tiny construction robot wearing a disproportionately-sized hard hat with a "plus" sign marked on it. Mets usually wait below their helmet before attacking, as it is impervious to nearly all of Mega Man's weapons. They appear in the various series of the Mega Man metaseries, with many different variations and forms. In the original Mega Man, another common enemy character named the Picket Man, has a head similar to the Metool, but with a full body. The Mets are a staple to the Mega Man series as the Goombas are to Super Mario Bros.