DO RORO DERODERO ON DO RORO is a high-energy rock track by the veteran Japanese band Dohatsuten (怒髪天), serving as the theme song for the 2012 mobile game 百鬼大戦絵巻 (Hyakki Taisen Emaki, localized as Mononoke Bloodshow in Asian English maimai releases). The title, read as ドロロ デロデロ オン ドロロ, strings together onomatopoeic syllables evocative of a chaotic, demonic atmosphere, fitting for a game centered on a massive battle of Japanese monsters and spirits (hyakki yagyō). Composed by Tomoyasu Kamiharako with lyrics and vocals by Naozumi Masako, the track was released on the band's 2012 single 歩きつづけるかぎり／DO RORO DERODERO ON DO RORO. In maimai, it arrived with the maimai PLUS arcade update on January 17, 2013 and has remained present through every subsequent version, though its genre classification within the game shifted multiple times before settling under GAME & VARIETY. Dohatsuten themselves are a storied act from Hokkaido, originally forming in 1984 and reuniting in 1999 after a three-year breakup, making this track a distinctive crossover between maimai's arcade catalog and the broader Japanese rock tradition.