Dark Samus

Dark Samus is a Metroid/Human hybrid (cybernetically augmented with the Phazon Suit and naturally infused with Phazon) acting as an Echo Fighter for Samus from the Metroid series. She first debuted as a cameo in Metroid Prime but made her full debut in Metroid Prime 2: Echoes.

Moveset
Dark Samus has no gimmicks. She can double jump and wall jump.

Taunts
Up Taunt: Dark Samus hovers up slightly while glowing with Phazon.

Side Taunt: Dark Samus spins around while glowing with Phazon.

Down Taunt: Dark Samus crouches down while holding her arm cannon upright.

Victory Poses
Dark Samus raises her arm and lowers it in a fist pump pose.

Dark Samus splits from a Dark Echo with an acrobatic cartwheel. They then levitate in a circle around an axis before recombining together. Dark Samus then poses with her free hand on her Arm Cannon, which is pointed upward.

Dark Samus turns toward the camera while glowing with Phazon, then the camera dramatically zooms in, showing two of her eyes.

Alts
2: Dark Samus's body turns green and her light turns yellow, not referencing anything.

3: Dark Samus's body turns purple and her light turns pink, in reference to Gandrayda.

4: Dark Samus's body turns red and her light turns yellow, not in reference to anything.

5: Dark Samus's body turns gold and her light remains unchanged, in reference to the Golden Torizo.

6: Dark Samus's body turns silver and her light turns red, in reference to concept of her for Metroid Prime 2: Echoes.

7: Dark Samus's body turns black and her light turns orange, in reference to Orange Phazon.

8: Dark Samus's body turns pink and her light turns purple, in reference to Zazabi.

Stage Entrance
Dark Samus warps onto the stage from a dark portal.

Classic Mode: The Great Poison Given Form
Dark Samus faces off against protagonist characters while she is teamed up with dark, evil, or corrupted variants of characters from their series, except for the penultimate battle, which is a free-for-all against Samus and Ridley. The pairing choices reference a time where the fighter was possessed or brainwashed into fighting the protagonist.