When the utility model is used for hitting balls (various miniature balls for hitting by a racket), dub drum sound can be generated. The utility model can be used for games on water surface.

在击球（各种小型击拍用球）时能发出咚咚的击鼓声，并可用于水面游戏。

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There is a rumor that the very first games were played with cigar box LIDS for paddles, carved champagne corks for balls, and a row of upended books for a divider in the center of the court.

谣传最初几场是以雪茄盒盖当球拍、香槟软木塞当球，还将一排书竖在球场中间分隔两边。

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The idea of folk games is a dead end, rhetorically: people have knocked balls against walls for many years, but it is possible to have Breakout clones.

FORBES: The system works. Sort of. Sometimes.