Schwarz Metzelei is a new character introduced in Metal Slug Attack.
A particularly powerful soldier in the Invader Army, Schwarz Metzelei was transferred from another galaxy to Earth, as part of Annette's plan on attacking the planet. Her extremely aggressive personality with an insatiable appetite can make her dangerous to her allies, as she tends to eat them by accident when in a feeding frenzy.
She uses her tail as a means of fighting her enemies, and is capable of using it to suck the life from her enemies to replenish herself.
Schwarz is one of the four Metzeleis, some of the strongest Invaders in the army.
First appearing in the Extra Ops "Fall of Disaster", Schwarz is sent by Invader high command as part of their plan to see how the Amadeus Syndicate would respond to the attack. This report was filed in by Annette, which mentioned them as the strongest in technological capabilities.
Upon arriving, Schwarz tries to eat Annette, though she fails. She warns Annette not to get in her sight, or she may accidentally eat her. Schwarz and Annette attack the Amadeus Syndicate, and she's pleased throughout the course of the operation, consuming both humans and robots alike. After dealing enough damage, Annette tells her to withdraw, though she refuses to as she wants to feed more. Schwarz reluctantly withdraws when Annette threatens to leave her on the planet, before she realizes that she can just come back later with the other members of the Top Four and resume her feeding.
She first appears in Nowan's flashback in the similarly titled "Fall of Disaster" story where she personally led an invasion on Nowan's planet. She took an interest to Nowan and spared them for later consumption. Somehow Nowan managed to avoid being eaten and was recruited into the Invader Army.
Annette pairs up Nowan with Schwarz back to Earth much to their horror and Nowan's memories resurface again causing them to be extremely nervous. Schwarz has apparently forgotten the incident but because of Nowan's reactions, later attempts to eat them but they are saved by Odette. Upon crash-landing on Earth, she embarks on a feeding frenzy on the Rebel facility but is disgusted by the taste of the "low-quality" humans. She soon takes an interest to Navy as she is different from the others but she proves to be rather troublesome to catch as Vita is supporting her. When Navy unleashes the Iron Vermilion on her, she easily destroys it and severely damages Vita.
Upon taking a taste of the Vermilion's remains, she becomes addicted (as it was created with Martian assistance like the original) and forgets Navy. After she fills up she tries to leave but realizes that her ship is destroyed and her allies gone, so she calls Annette, who hangs up on her due to attempting to eat Nowan and harm Odette. She soon calls Fedeln Metzelei for a ship but is given a sob story instead.
- She possesses a German name, which roughly translates to the "Black Butcher".
- Her appearance is similar to the Alien Xenomorph from Aliens franchise and Cell from Dragon Ball Z.
- Originally her 4 was to buff the health of allied alien units. It was changed to buff their damage output for unknown reasons.