Serial Number: DWN-028
Designer: Dr. Cossack
Weapon: Pharaoh Shot
People make fun of Top Man for having a low quality ability, but consider Pharaoh Man's backstory. Dr. Cossack designed him with the ability to channel energy from sunlight. This is a truly useful ability, considering that Pharaoh Man's primary purpose is to explore underground ruins, which we all know are filled to the brim with brilliant illumination from the Sun.
Still, he's an interesting character simply because of his aesthetic. Excluding the cast of Mega Man 6, very few of the Robot Masters in the series are modeled after cultures or nations, making Pharaoh Man rather unique.
Of course, there's also the fact that in the cartoon, Pharaoh Man is is good at improvising.