Add-a-Ball

A reward mechanism in which the player earns an additional ball of play rather than a free game. Add-a-ball emerged in the late 1950s and early 1960s as a direct response to local regulations that classified Replay awards as gambling: if the machine never awarded a free game, it could not be considered a gambling device. The distinction was legally significant — it determined whether a machine could be placed on location in a given jurisdiction.

Manufacturers produced add-a-ball versions of their games primarily for export to Italy and other European markets where replay machines were prohibited. A typical production run yielded both a replay model for the domestic US market and an add-a-ball model for export, often with different model numbers, different backglass artwork, and different instruction cards, but sharing an identical playfield layout. IPDB and other databases frequently list these as separate machines, though they represent the same game design configured for different legal environments.

Add-a-ball machines were identifiable by their lack of a replay counter on the backglass and the presence of an “Extra Ball” indicator in its place. The player’s reward for strong play was more time with the current game rather than a new game entirely — a distinction that satisfied regulators in jurisdictions where the free-game award crossed the line into gambling.

The add-a-ball mechanism was most prevalent during the 1960s and 1970s, when the legal landscape for coin-operated amusements varied sharply between countries and even between states and municipalities within the United States.