Block Man is a Robot Master that first appeared in Mega Man 11. He is a small, stout robot created to work on exterior constructions, being able to create blocks one after another. His regular appearance resembles a stone castle.
In combat, he uses his Special Weapon, Block Dropper, to form blocks out of thin air above his opponents to try and crush them. When in a pinch, he uses the Power Gear installed by Dr. Wily to cover his body with blocks and transform into a gigantic robot, increasing his physical strength. This gigantic form has its own life gauge. When his giant form is destroyed, he will move to a corner and constantly throw blocks.