Dyna Man is one of the three Robot Masters from the Mega Man computer game for DOS. His name is short for "Dynamite Man."
Dyna Man is a master of explosives, who uses his Nuclear Detonator weapon to quickly take out his opponents with dynamite sticks before they have a chance to get anywhere near him. He is weak against electrical weapons, since they can't get through the Force Field and cause him to short circuit, while detonating his explosives.