Vicious Circle is a prototype arcade game, details about its gameplay, developers, or release history are scarce. Information on this title is limited, and its existence primarily comes from various arcade game databases and enthusiast communities.  It is not widely known or readily accessible for play, making research into its history more challenging. No specifics on the game's mechanics, the company behind it, or why it remained unreleased are currently publicly available.

Vicious Circle (prototype)

Vendetta (World, 2 Players ver. EB-A?)