0 a small device that you hold in your hand and use to move and control a machine or computer game --
When using a rotary controller in one player modes the second controller port and a standard joypad are used for some bonus levels and entering the players initials.
The game would have two extra joypad ports built into the cartridge itself, thus negating the need to buy extra hardware (beyond two more joypads) to play four-player games.
The game requires a six-button joypad for proper input, although, only the low punch is absent on the original three-button controller.
Ai is the only way to control your bot: there is no way to control it through the keyboard or joypad.
Various methods such as joypad adapters and link systems are employed to allow multiple players to compete, up to a maximum of 8.
