Heroine

 is a gun that has 3 levels of damage depending on how long the gun has been charged.

Trivia

 * This gun is a reference to the arm cannon wielded by Samus Aran, the heavily armored bounty hunter and protagonist in the Metroid series.
 * Its in-game model and its alternative modes match its appearance in Metroid Prime.
 * The synergy is a reference to a weapon with the same name from Super Metroid. The beam is obtained after a baby Metroid sacrifices itself to save Samus.
 * Although its activation references Super Metroid, the appearance Heroine takes resembles more of the Phazon-Infused Arm Cannon from Metroid Prime.
 * The synergy is a reference to a Miiverse post on the Super Metroid community, where the user asked: "Y Can't Metroid Crawl".