Fantasy Zone II: The Tears of Opa-Opa is a sequel to the original Fantasy Zone. This specific version runs on Sega's System 16C arcade hardware and is a prototype. Prototypes are early, unfinished versions of games used for testing and development.  Gameplay is likely very similar to the released version, but with possible differences in level design, enemy behavior, or other features that were refined before the official release. The prototype stage indicates that Sega was still working on refining the game's mechanics and visuals.

Fantasy Zone II - The Tears of Opa-Opa (System 16C, prototype)

Fantasy Zone (Rev A, unprotected)