Megaton Musashi (メガトン級ムサシ, Megaton-kyū Musashi) is a Japanese action role-playing video game and multimedia franchise developed and published by Level-5. Initially planned to be released on iOS, Android and the PlayStation 5, the game was released on the Nintendo Switch and PlayStation 4 on November 11, 2021. An anime series by OLM, aired from October to December 2021, with a second season premiered in October 2022.