Defeating Dark Samus In The Agon Wastes:

The evil person resembling you is back and now you must her to the death. Her abilities are like yours along with a few better abilities. To beat her, rapidly attack her without getting hit so she knocks you off target. Her abilities are a missle and a beam that sends out like 30 individual shots all over to hit you. She has a charge shield which deflects anything you can throw, however, she only uses it when you use a missle. When you get her to a certain point of her health, she uses a very power charge attack. It is a thing where jumps in the air, charges awhile and just flies in to crash into you. Just use anything neccessary to cause extreme damage. Have fun.