The Wizmaster is a wireless controller

Game controller

A game controller is a device used with games or entertainment systems used to control a playable character or object, or otherwise provide input in a computer game. A controller is typically connected to a game console or computer by means of a wire, cord or nowadays, by means of wireless connection...

 accessory for the Nintendo Entertainment System

Nintendo Entertainment System

The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987...

 created by QuickShot

QuickShot

QuickShot was a line of joysticks and other input devices produced by Spectravideo for video game machines including Atari, Commodore, MSX, Amiga, Nintendo and Sega. Relatively famous was its Quickshot Maverick joystick, compatible with multiple consoles and home computers...

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This wireless controller has various adapters that would plug into the back of the controller. It came with a packaged remote adapter, but others could be purchased separately. The Wizmaster also came packaged with an arcade game

Arcade game

An arcade game is a coin-operated entertainment machine, usually installed in public businesses such as restaurants, bars, and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games, and merchandisers...

-style joystick that would attach to the directional pad.