Dark Samus is a recurring antagonist from the Metroid series and appears as a playable fighter in Dairantou Smash Bros. (Super Smash Bros. Ultimate). Created from the remains of Metroid Prime fused with Samus Aran's Phazon Suit, Dark Samus is a powerful, sinister doppelgänger. In Smash Bros., she uses similar abilities to Samus but with a darker, more ethereal twist, utilizing Phazon-based attacks. Dark Samus's role adds a menacing presence to the roster, serving as an echo fighter to Samus.