Serial Number: DLN-071
Designer: Dr. Light
Weapon: Magma Bazooka
Most Mega Man games have Robot Masters that are themed after elements. Robot Masters that use or control fire are a simple example. It also seems like there's been something of an arms race with the fire-based characters. Each one is more dramatic and crazy than the previous one. It all starts with a simple incinerator, and eventually progresses to raw magma, and after this you have a Robot Master wielding the pure intensity of the Sun itself.
At least Magma Man could be repurposed into a nifty little sauna after the adventure.