DISCUSSION Several factors that gave rise to the coin-operated amusement industry in urbanization are related to transportation, immigration, and the American Industrial Revolution.  In this section, the ELECTRO-MECHANICAL SOUND EFFECTS of 20th-century games have been discussed. During the 20th century, games commonly used sound effects such as clucking sounds for amusement purposes. Mechanical sports games … Continue reading ELECTRO-MECHANICAL SOUND EFFECTS