'Audio-visual' or 'realistic' games referred to novelty games that used advanced special effects to provide a simulation experience.

'General' arcade games refer to all other types of EM arcade games, including various different types of sports games. Gun games refer to games that involve shooting with a gun-like peripheral (such as a light gun or similar device), similar to light gun shooter video games. 'Novelty' or 'land-sea-air' games refer to simulation games that simulate aspects of various vehicles, such as cars (similar to racing video games), submarines (similar to vehicular combat video games), or aircraft (similar to combat flight simulator video games). EM games lie somewhere in the middle between fully electronic games and mechanical games.ĮM games have a number of different genres/categories. Examples of electro-mechanical games include Periscope and Rifleman from the 1960s.ĮM games typically combined mechanical engineering technology with various electrical components, such as motors, switches, resistors, solenoids, relays, bells, buzzers and electric lights.

Some of these were early light gun games using light-sensitive sensors on targets to register hits. Electro-mechanical games (EM games) operate on a combination of some electronic circuitry and mechanical actions from the player to move items contained within the game's cabinet.

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