Mega Man IV

After his aquatic defeat, doctor Wily has gone into hiding yet again, and has not been seen for many months. At the first National Robot Master expo, he decides to make a public re-appearance and activates some of the robots in the display cases. Luckily, Mega Man was at the expo at the time, but Doctor Wily could not find a way to harm the blue bomber. Doctor Wily escapes, and now Mega man has a new quest- to find all the robot masters and deactivate them before they can do the harm they did in the past, while dealing with the ever-mysterious Ballade.