Getsu Fūma Den is a classic action-adventure video game developed and published by Konami for the Nintendo Entertainment System in 1987. The game follows the protagonist, Fūma, as he embarks on a journey to defeat the evil demon Ryūkotsuki and retrieve his stolen family sword. It features a mix of side-scrolling platforming and open-world exploration, with players navigating various landscapes and engaging in battles with mystical enemies. The game is known for its challenging gameplay and unique art style.