Dark Samus

Dark Samus is the dark version of Samus, first shown in the ending credits of Metroid Prime.

Dark Samus is an Echo Fighter of Samus, a member of the "Original 12", a group that contained the 12 Smash Bros. perfect-attendance characters who are the only eventual starter characters of the game. As Dark Samus isn't a member of the Original 12, Dark Samus will have to be unlocked first.