Rumble Garanndoll (Japanese: 逆転世界ノ電池少女, Hepburn: Gyakuten Sekai no Denchi Shōjo, transl. "World-Twisting Battery Girls") is an original Japanese anime television series animated by Lerche. It aired from October to December 2021. A manga adaptation with art by Left Hand has been serialized online via Kadokawa Shoten's Comic Newtype manga website from October 2021, and a web novel by Ukyō Kodachi titled Gyakuten Sekai no Denchi Shōjo: Garan Senki (逆転世界ノ電池少女 伽藍戦記) began serialization on Kakuyomu in December 2021.