|“||I am Sunstar... The doomsday weapon... I must destroy all inferior life forms!||„|
After his defeat inside the Wily Star, Wily activates Sunstar to defeat Mega Man. However, Sunstar attacks Wily, who retreats. He still fights against Mega Man anyway, stating that robots were created only to fight and that he plans to kill all those he deems as worthless.
After the battle, Mega Man, taking sympathy on him, asks if he wants to be taken back to Dr. Light's for repairs. He is surprised by this, asking why since he believes robots only exist to destroy. Mega Man states that he will only fight to save the world, which Sunstar thinks about. But then realizes and says that he shall soon die due to his core being damaged and tells him to go. Though reluctant, Mega Man does and soon, Sunstar dies, taking the Wily Star down with him.