Madou Monogatari I: Mitsu no Madouryoku is a role-playing video game for the Mega Drive that was the last official Sega Mega Drive game released in Japan. The game is part of the long-running Madou Monogatari series. It is a later revision to the Game Gear version, Madō Monogatari I: Mittsu no Madō-kyū, which is based on the original MSX and PC98 versions, and borrows heavily from the PC Engine version, Madō Monogatari I: Honō no Sotsuenji.