Bally and Atari's effort to capture the nerd crowd, these proto-video-game inspired slots have just started popping up, with rows recently spotted at MGM Grand and Bellagio (near the mall entrance). They work just like regular slots, until you spin your way into a 45-second bonus round, during which your rusty Pong skills will determine your payout and leave you pining for the comparative complexity of Rampage.

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Breakout, Asteroids, and Centipede coming -- see the machine in action