[...] they were bowling under black-light conditions with glowing pins and an audio-visual package which features big-screen televisions above every set of lanes and music. Other features of the bowling center include upholstery seating on the concourses; an AMF scoring system on which a bowler may choose his or her own video background on the scoring screen; ball returns which are six inches higher than the average ball returns which make retrieving the bowling ball easier; a professional lane conditioning machine; pin spotters which reset pins in 8.5 seconds and can automatically call a mechanic if a pin is out of range or a ball does not return; and gutter bumpers which can be activated and de-activated automatically according to the bowler.