Bally's Spot-Lite was the third bingo game that Bally produced after the one-ball era had ended in 1950.  
Spot-Lite has the first use of Pick-a-play in a Bally bingo (although the button colors are slightly different), and has the first use of spotted numbers in a bingo.  
The internals are unique for a bingo as well - the control unit and several steppers are contained in a board inside the cabinet, similar to the one-balls rather than Coney Island (the second bingo off the line).
A beautiful single card game with extra balls and a corners feature.
Yet another I'd love to play.  Up to five numbers can be spotted independently - one of which is my favorite/least favorite number: 16, the center of the bingo card.