Wii Zapper

The Wii Zapper is a gun shell peripheral for the Wii Remote. The name is a reference to the NES Zapper light gun for the Nintendo Entertainment System. It is mainly used for shooter games, including light gun shooters, first-person shooters, and third-person shooters.

According to an interview with Shigeru Miyamoto, the idea of a Zapper-type expansion formed when the Wii Remote was first created. He expressed that "What we found is that the reason we wanted to have a Zapper is when you hold a Wii Remote, it can be difficult for some people to keep a steady hand. And holding your arm out like that can get your arm somewhat tired."

A staff member of The Legend of Zelda: Twilight Princess's development team later created a makeshift gun-like frame using rubber bands and wires, which held the Wii Remote and Nunchuk together. In response, Miyamoto stated "this isn't the time or the place to be making things like this!". However, when Miyamoto held the prototype in his hands, he found it very comfortable. He proposed it to the hardware developers, who started on the formal development project. The Wii Zapper underwent an extensive development period involving many design phases, including one that produced a rumble whenever the player hit a target. To save battery life, the rumble function was abandoned.

A "Zapper" prototype was shown at E3 2006 featuring a shotgun-like design with a "trigger hole", as well as an analog stick built into the top of the handle. This made it similar to the Nunchuk attachment, but without the accelerometer and the second button. In this version, the "gun barrel" of the shell housed the Wii Remote and connected with its expansion port.

A revised design was revealed on July 11, 2007 at E3 2007 with a form reminiscent of a submachine gun, in which the Wii Remote is fitted in the gun barrel and the Nunchuk is cradled in the rear handle. This design came about with the realization that making the Wii Zapper functionally independent from attachments would "allow for more diverse play styles." Some concern has been raised by this arrangement, since most people would naturally end up holding the Nunchuk with their dominant hand and be forced to pull the trigger with their non-dominant hand. Third-party titles designed to support the Wii Zapper include Resident Evil: The Umbrella Chronicles, Ghost Squad, Medal of Honor: Heroes 2,The House of the Dead 2 & 3 Return, House of the Dead: Overkill, Call of Duty: World at War, Wild West Guns, Quantum of Solace, Call of Duty: Modern Warfare Reflex Edition, Dead Space: Extraction, Resident Evil: The Darkside Chronicles, Heavy Fire: Special Operations, Mad Dog McCree: Gunslinger Pack, GoldenEye 007 and Call of Duty: Black Ops, while Nintendo has supported it with the first-party WiiWare game, Eco Shooter: Plant 530, as well as with Sin and Punishment: Star Successor.

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