Picket Man

Picket Man, also known as Pickel Man in Japan, is a robot that hides behind a shield and only comes out to shoot pickaxe projectiles in an arc towards the player.

Picket Man is a sort of Met who has been given a humanoid body, according to the Mega Man Legacy Collection. Picket Man initially appeared in Mega Man 1 and has since appeared in other Mega Man games in various variations. As of version 1.7.5, the original Picket Man is the sole version available in Mega Man Maker.