I remember Metroid Fusion.
The S.A.-X (Samus Aran-X clone) and she showed NO MERCY!!! It was hard to fight her because I didn't get 100% Items. After I killed her, I set the ship on a
crash-corse to SR388 and by the time I reached my ship, it was gone! A
wierd-looking alien (Omega Metroid I think) was waiting to kill me. The S.A.-X came and died protecting me, then I got a new suit and beam. I killed the alien and mu ship came, saved me, and I got away.