ONE PUNCH MAN 一撃マジファイト is a turn-based command battle RPG game developed by GREE Entertainment inc. The game features a variety of characters from the ONE PUNCH MAN anime series, including the protagonist Saitama, and allows players to form their teams to battle against enemies. The game offers a faithful recreation of the ONE PUNCH MAN world, complete with over 80 characters available for team formation.

The game's main attraction is its combat system, which combines 2D character action with cut-ins of various characters performing their signature moves. Additionally, players can use strategy to decide the timing of their attacks and combinations of characters to secure victories. The game also offers a variety of modes, including PvE, PvP, GvG, and co-op play with other players, allowing players to use their favorite characters to achieve victory. The game is free to play and available on the iPhone platform.