The weapon can cause the trajectory of its bullets to twist and turn and is capable of an array of different forms of firing. When used many times in a row, it's accuracy declines, making timing of its use critical.
- Prometheus is the name of a titan who sided with the Olympian gods in their war against the titans.
- The Shingu was noted to share its unique ability with the Meihou of Mizuchi and the Teigu, L'Arc Qui Ne Faut.
- Akame ga Kill! Zeromanga; Chapter 3, page 11
- Akame ga Kill! Zeromanga; Chapter 4, page 13
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