Pinball
Overview
 
Pinball is a type of 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...

, usually coin
Coin
A coin is a piece of hard material that is standardized in weight, is produced in large quantities in order to facilitate trade, and primarily can be used as a legal tender token for commerce in the designated country, region, or territory....

-operated, where a player attempts to score points by manipulating one or more metal
Metal
A metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light...

 balls on a playfield inside a glass
Glass
Glass is an amorphous solid material. Glasses are typically brittle and optically transparent.The most familiar type of glass, used for centuries in windows and drinking vessels, is soda-lime glass, composed of about 75% silica plus Na2O, CaO, and several minor additives...

-covered case called a pinball machine. The primary objective of the game is to score as many points as possible. Points are earned when the ball hits against one of many different objects in the machine such as a bumper or plunger. Near the lower bottom part of the playfield, there is a hole protected by plastic flappers.
 
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