R.O.B.
Stands for Robotic Operating Buddy, was a little, one
foot high, legless robot which interacted with the video games compatible
with it (e.g. Gyromite and Stack Up). When released in the US it was included
in the Original Set together with the control deck, two controllers, the
Zapper lightgun and the two games Gyromite and Duck Hunt.
The robot had a sensor in his head which detected when the TV flashed
in different ways. The robot could do things like pick up a chip from
a stack and then drop it on a pad that opened a door in the game.
The Zapper
A red gun (originally in a white and gray design) that was sold with the
game Duck Hunt. You point the gun at the TV screen and shoot. The game
then feels if you hit or miss! Have you ever wondered how it really works?
Well fear not, because I have the answer....
Every time you pull the trigger on the Zapper, the NES redraws the screen
a little bit different. The "shootable" things on the screen
are drawn in white and everything else is in black. The Zapper has a little
sensor that can tell light from dark and if the sensor "sees"
a white spot on the screen, it is a hit. Otherwise, it's a miss.
Available games for the NES Zapper (that I know of!): Duck Hunt, Gumshoe,
Hogan´s Alley, To the Earth, Wild Gun Man, Track 'n' Field 2, Trick
Shooting, Bayou Billy, Freedom Force, Gotcha! and Shooting Range.
Power Glove
Not very useful, but at least it looks cool!
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U-Force
.
A little box with two sensors that can read if you have your hands inside
the box or not. Maybe fun with Punch Out!
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NES Satellite
Lets you play with up to four people at one time on the NES.
Power Pad
"Get in shape while you play a Nintendo game!"
When it was "discovered" that sitting and playing video games
day in and day out wasn’t so healthy for you, Nintendo decided to
market this odd NES accessory under the slogan, "Get in shape while
you play a Nintendo game!". The Power Pad is a big carpet-like mat
with 8 big buttons, which you use to control the game (like a gigantic
controller!). It was released with the 5-games-in-one cart Athletic World.
The accessory was first named Power Pad in the US but changed name to
Family Fun Fitness when released in Europe. Other compatible games were
later released. Here is a preliminary list: Dance Aerobics, Eggsplode/Shortorder
(two-in-one cartridge), World Class Track Meet, Super Team Games, Street
Cop and Athletic World. Most of the games are sports games but there are
some other type of games as well. For example Street Cop is a very rare
beat 'em up where you use both the Power Pad and the regular NES controller.