Ganryu is a 1999 side-scrolling hack and slash action-platform game developed by Visco Corporation for the Neo Geo MVS arcade system and later ported to the home Neo Geo AES console and other platforms. The game is loosely based on the legendary duel between Japanese swordsmen Miyamoto Musashi and Sasaki Kojirō.

Plot Summary

• The Resurrection: One month after Musashi defeated Kojirō in their famous duel at Ganryu Island, Kojirō is resurrected as a demonic entity after making a pact with dark forces.
• The Conflict: Reborn as a vengeful demigod named Chaos, Kojirō leads a mysterious ninja clan to terrorize Kyoto.
• The Motivation: Kojirō orchestrates a series of kidnappings, including Musashi’s lover, Otsu, specifically to lure Musashi out of hiding for a final confrontation.
• The Quest: Musashi travels to Kyoto to rescue Otsu. He is joined by Suzume, a kunoichi whose sister was also taken by the clan (or who is Otsu’s sister, depending on the version).
• Conclusion: The duo fights through hordes of ninjas and monsters, eventually confronting Chaos at Ganryu Island. Upon his defeat, Musashi and Otsu are reunited and eventually marry, while Suzume becomes a priestess for her clan. 

Gameplay Overview

• Characters: Players can choose between two characters, the samurai Miyamoto Musashi or the female ninja Suzume.
  • Musashi is the stronger character but is less agile.
  • Suzume is faster and jumps higher but is less strong.
  • The game features an alternating two-player mode, where players take turns after one character loses a life.
• Mechanics: The game combines elements of classic ninja action games like Ninja Gaiden and Bionic Commando.
  • Melee Combat: The primary attack is a close-range sword slash.
  • Grappling Hook: A key feature is a grappling claw used for both attacking distant enemies and swinging from specific overhead structures to reach new platforms or secret areas.
  • Power-ups: Players can collect temporary weapon power-ups like shurikens, kunai, or an “energy ball” shield, and rescue hostages for health items.
• Level Design & Difficulty: The game features large, sprawling stages with multiple paths. It is known for its high difficulty, with frequent enemy respawns and challenging boss battles that require learning specific patterns.