First, Slug charges two golden energy balls in his hands. Then he fires them at the opponent, inflicting a large amount of damage. Lord Slug uses this technique inside his spaceship, testing out his powers after using the Dragon Balls to wish himself back to his prime, while his henchmen are fighting the Z Fighters.
Appearances in games
Darkness Twin Star was named in Dragon Ball Heroes, where it is Lord Slug's special attack in his base form. It also appears in Dragon Ball: Xenoverse 2 as one of Lord Slug's Super Attacks, named Dark Twin Star.