Rock 'N Roll

Rock, designed by Norm Clark and released by Williams Electronics in 1970, is an electro-mechanical (EM) single-player pinball machine with a music and singing theme. It uses an Add-A-Ball format along with a mechanical backbox animation - a spinning arrow - that was a hallmark of Williams' EM-era machines of the period.

One of Rock's most notable features is its up-post between the flippers, adding complexity to the gameplay. Two slingshots, five pop bumpers, nine standup targets, two kick-out holes, and rollover buttons all contribute to an engaging, dynamic layout, and a plunger skill shot rewards precise shooting off the start. The machine's scoring is unusual in that the backbox spinner, rather than the outhole, advances the bonus ladder.

Rock's music theme comes through in its sound design, built around a bell, a wooden chime box, and a knocker rather than any electronic tones. With only about 270 units produced, it's a comparatively scarce machine today; a replay version of the same game was released the same year as Williams' "Jive Time."