Sniper Joe was one of the first robots that Dr. Wily and Dr. Light worked on together. It was used for a weapon in the military and in Dr. Wily's attempt at taking over the world, he confiscated some from the military to use against the city. When one was first spotted, Dr. Light confused it with Blues (Proto Man) because of his shield and buster. Another Sniper Joe was used in the escape of Dr. Wily from police custody to keep Mega Man busy as Time Man freed Wily.